“How did you get here… Ugh!”

Clack. A strong scent hit her as soon as she turned the doorknob. Seyeon unconsciously took a step backward. The scent of a particular group of people that ordinary people could never have. Before she could even take another step back, he grabbed her arm. She tried to shake him off, but her foot twisted as she backed away. Then she fell to the floor.

He didn’t injure her by pulling her arm to him, but he did get hit in his knees by accident as she tripped. Instead of raising Seyeon, he knelt down and locked her between his legs as he sprawled over her. 

“Why do you run away the moment you see me? You’re going to get hurt.”

He said it with a smile, but the pressure she felt from his presence couldn’t be hidden. It felt as if there was a beast behind her. No trace of a human being.

Seyeon tried to shake her arms and legs out of his hold to get away from him. She knew if she didn’t run away now, then it was obvious that this man wouldn’t let her go until he devoured her from head to toe.

“Get-Get out of the way.”

He was pressing her legs tightly together, so she couldn’t get away from him no matter how hard she tried to squeeze against him. She tried to push his thighs out of the way, but his muscular thighs didn’t budge at all.

He held Seyeon tightly as if he wouldn’t allow her to escape, like a snake wrapping around its prey. His hand moved to the side of her body. His large hand squeezed tightly on her waist, then moved to her chest. The slight pressure he exerted was a warning, as if to tell her she shouldn’t even consider trying to run away anymore. 

The scent that made her mind blank became even more intense as he pressed down against her entire body. Pouring a bottle of woody cologne onto one’s body wouldn’t seem to have a thick scent like this. The only problem was that it smelled incredibly good. Not even disgusting in the slightest. Her mind raced with the idea of leaving her body to him.

However, he wasn’t the type of person who would have come into her house without her permission. Seyeon opened her mouth to speak. She could barely hold on to the strings of rationality that let her think. It was difficult to speak properly because she was breathing roughly. The adrenaline rushing through her body and the scent of him enveloping around her like a cocoon. 

“You’re here like this, and against the rules. Half—Ahhh!”

Before she could finish, he bit the tip of her ear. It caused Seyeon to scream out in pain. She felt as if her earlobe was going to fall off. However, the pain began to be replaced with pleasure when his hot tongue licked the bitten spot. The spot between her groin started to get wet as the pleasure coursed from her ear down to her spine. 

“Then report it. I’m already prepared for it.” 

It wasn’t hard to believe that he was so excited that he had already lost his mind, but surprisingly his voice was calm. The giveaway to his true state of mind was his seething hot breath that fanned over her. The heat that couldn’t be resolved started to accumulate in a frenzy that threatened to burst. She knew it would overtake her sanity right away. 

Seyeon heard her voice choking up, her legs were shaky and her head was spinning. He already understood he was breaking the rules. She couldn’t help how her fragile body responded honestly to her desire to self-indulge in pleasure. Even though she wasn’t in heat, it didn’t matter in front of a strong male that oozed attractive pheromones.

“Aahhh….”

Seyeon’s body trembled again as he bit and lightly chewed her earlobe. The liquid started to accumulate in the tight part of her underwear that dripped and soaked through the material to her thighs. She wasn’t the only one who noticed it, and his large hand slipped into her pants to get to her wetness. He relentlessly rubbed her pubic area and slowly touched the inside of her warm flesh. Everytime his finger moved, a squelching sound could be heard from below her.

“It seems like you aren’t going to report it.”

Seyeon sneered at his words and tried to deny it as her face burned red. Unfortunately, it didn’t work. His fingers that went inward moved from side to side as if they were checking the condition of her *****.

“You’re so wet. What if I didn’t come to you?”

This wouldn’t have happened if you hadn’t come! Seyeon wanted to shout that at him, but she couldn’t. Her body was already responding to him by showing him that she was really wet. He smiled then pulled down her trousers with just a few actions, and revealed her pale white ***. Seyeon flinched as he spread her thighs with his hands as he pushed his thick hardness in between her soft flesh.

“You always do as you please when you’re like this…”

“Shut up. I’ll beg for forgiveness later.”

“Uh!”

Shut up. She turned her head, enraged, but her tongue slipped out of her mouth. His wretched grip on her chin hurt, but she was more focused on how out of breath she was. Not only her breath, but also her tongue and saliva were being sucked by him. All while his hard erect **** pressed against her wet and twitching vagina.

“Humm…!”

From the moment she smelled his scent, all rationality disappeared. His pheromones alone had the power to control the people around him. It made her body completely melt and was greeted with a hot and hard **** as if she had been waiting for it. The fierce resistance subsided the moment she accepted his throbbing hardness. Seyeon felt betrayed by her own body that accepted him obediently. 

He didn’t hesitate to push his cock into her tight opening. Even knowing that her insides were too tight for her to properly receive him.

He struggled to stretch her vagina past its limits and the sound of groaning could be heard. His hardness was slowly penetrating her *****. The noises from both of them were a mix of pleasure and pain. However, he didn’t bother to stop. He didn’t back down and forced her body to accept his intrusion.

“Ahh, haa!”

When his erect **** pushed deeper into her and hit her sensitive spot, Seyeon unconsciously slammed the floor with her fists. It hurt, but at the same time it felt crazy good. Her reasoning had almost disappeared to pure instincts, but it was still there, just in a thin amount. She could slowly feel her consciousness become a shell longing to fulfill instinctive desires. 

Seyeon’s fists were suddenly covered with his large hands. Seyeon slammed the palms of his hands as she tried to refuse his touch. However, he was doing it so that she wouldn’t be hitting the floor anymore. He smiled softly and took Seyeon’s hands in his only to place both of them over her head. Seyeon felt trapped with her arms held above her, but she had no choice but to allow him to do as he pleased.

Seyeon’s upper body was tightly bound to his own. Her hips rose high up to meet his own. He wasn’t satisfied with that, and he made Seyeon’s lower body rise higher by lifting her with his hands to meet his thrusts. As if he was about to enter a place where no one else could enter, he rubbed her hips and kissed Seyeon on the cheek. It was a sweet kiss that didn’t match his beastly act.

Her insides were filled to the brim with his thick *****. The transparent liquid was dripping down the point of union between them. It was like a never ending flood that kept running. Her back was pressed against his own that felt like it would break from his tight hold. 

She tightened and squeezed her walls against his **** inside of her. It was as if she was hungry for pleasure. Any and all that he wanted to give her. Her body was yearning and accepting of it.

He liked her honest reaction. He suddenly leaned down and bit Seyeon’s slender neck. He was preoccupied with thrusting his cock deeper inside her. He wanted to possess every inch of her body. Make it all his.

“Uh, evil!”

He pressed his face against Seyeon’s neck and inhaled her scent. He sucked on her tender skin when he heard her scream. He pushed Seyeon’s body with his entire body as if it wasn’t enough. He pushed his member in until it reached the deepest part over and over again.

She was being fucked for a long time. She had lost track of everything. She only focused on the pleasure she seeked and received. He looked down at the back of her neck. He could see the bite mark he had left, and he licked it gently with his tongue as if he was satisfied. 

“Choose me now. Before my patience runs out.”

Seyeon couldn’t keep her hands on her phone or laptop as she waited impatiently for her turn in the hospital’s waiting room. Even though she had taken half of an unplanned work day off, she had been notified she needed to complete a job that had been delayed. She found she couldn’t concentrate as well as she thought, and no progress was made as she had hoped.

Seyeon sighed a few times and shifted her gaze to the treatment room. A bin on the wall with the folders of patients to be seen was next to the tightly closed door. There was no one else besides Seyeon’s folder. Hers alone was empty in the bin as it waited to be collected. She realized that must mean that no one was being treated inside the room, and she was still waiting for the test results to come out.

‘Re-examination?’

‘Yes. According to the blood test you took the other day, you need to come in for a follow-up examination.’

A re-examination was revealed after last week’s medical annual check up that she had to be given under the orders of the company she had worked at for two years. She couldn’t hide her anxiety when she was told she needed to take another blood test. Especially when she heard she would have to do one for obstetrics and gynecology tests.

[TL/N: Obstetrics deals with the care of pregnant women, the unborn baby, labor and delivery and the immediate period following childbirth.While Gynecology deals with any ailment concerning the reproductive organs; uterus, fallopian tubes, cervix, ovaries and vagina. A gynecologist may also treat related problems in the bowel, bladder and urinary system

Seyeon’s gaze fell down to her rolled-up sleeves on her arms. She was drawn to the small white cotton ball that was pressed against the spot where blood was drawn. The nurses only told her they were collecting blood for the tests and an additional one that they didn’t tell her what kind it was.

Being busy wasn’t merely an excuse to miss it. Going to the hospital or the bank wasn’t easy when you worked in a company. They eventually told her she could take a half-day off because her examinations had been pushed back due to work priorities and other duties.

Seyeon worked on the service support team. They had a great deal of work, but there were only a few people appointed to work there. This meant if one person went missing, all the other people’s workload increased. Seyeon was the youngest member on the team and because of the lack of people she was a little wary of taking a vacation or a day off.

‘Haa, Seyeon. I can’t even say anything because I have a real health problem… Not today, really out of all days. This is driving me crazy.’

Today was the busiest day of the week because there was a strategy meeting. She wondered how much attention she’d get if she told them that she had a re-examination on this particular day. It didn’t seem right if the youngest member was absent because she was in charge of the difficult work. She would rather give a reason to why she would be missing, but it felt too personal to share.

Seyeon had wanted to avoid a day like today, but she couldn’t help that she needed to go to the hospital. She thought she would see a doctor right away and then be sent back to work. However, she couldn’t get the concerns off her mind about whether or not she had a serious disease. It seemed the only likely possibility as to why they had called her back.

“Miss Im Seyeon. Please head to the third treatment room.”

Her name was called, while she nervously bit her bottom lip. She hurriedly packed up her belongings before she made her way to the designated room. She entered the treatment room and noticed a very young, well dressed male doctor sitting at the computer.

Seyeon checked the nearby window by reflex. It wasn’t enough to be called Hyperosmia, but she was sensitive to the smell of human sweat and body odor. She made sure she avoided confined spaces because of how they made her feel. Fortunately, the window was open enough to let out the strong scents of those inside. Even though it was quite chilly from the air being let in. A comforting minty scent tickled her nose as she inhaled deeply.

[TL/N: Hyperosmia is an exaggerated or abnormally acute sense of smell.]

“Miss Seyeon?”

“Oh, yes.”

As she stood still, the doctor took his eyes off the monitor and looked at Seyeon. She sat down in the chair in front of him and noticed the indifferent look behind his glass lens became slightly artificial. He seemed to be trying to act professional in his own way.

The doctor looked through the medical records on the monitor for a long time. Seyeon glanced at the back of it, but there was no way she could figure out what it was. She bit her lower lip as she felt crushed by the deafening silence. The only sounds in the room was the doctor clicking the mouse and tapping the keyboard while staring at the screen. His voice was low and clear. She heard the words muttered to himself.

“It rarely happens this late, which is interesting.”

The words made Seyeon’s heart sink deep into her stomach. The fact that it was discovered late meant that it was difficult to treat. No way…. The doctor took his gaze away from the screen and turned to look at Seyeon. He was unaware of the negative thoughts reaching their peak inside her head. He smiled and shook his head, as if he could read Seyeon’s thoughts just by looking at her face.

“Congratulations. You’re an Omega, Miss Im Seyeon.”

Alpha, Beta and Omega.

These terms are used to divide a person’s sex according to hereditary traits. However, the majority of the population are commonly Betas with no distinguishing characteristics like the other two sexes. They can get by with their day to day life without troubles, and there’s nothing special that distinguishes them. Alphas are considered the superior sex. They are the dominating class that always comes out on top in everything they do. They have strong personalities and pheromones that command attention. Omegas are special because they are extremely rare. They are all attractive in scent and looks. They experience a regular heat that emits alluring pheromones to attract Alphas.

Alphas could be found all over society. Most people would know their names because each one of them were of high rank, talented, intelligent, and good looking. The president, world-class athletes, and conglomerates are all Alphas. They naturally monopolized the ruling class because of their genetic superiority.

There was even a saying that the world rolled off Alpha’s heads and on Beta’s hands and feet.

Omegas are the opposite of Alphas and are difficult to come across in real life. It wasn’t just that, but Omegas are difficult to tell apart from Betas. They can blend in with the crowd and get along with others like everyone else. The one thing that sets them apart is a special pheromone.

“Omegas are extremely rare, but it can happen if you were born as a Beta and developed late. It’s almost like an infrequent reported case. Anyway, you don’t have to be worried about it happening so late. Currently, ‘ABO’ manages and registers Alphas and Omegas. Of course, there will be training for you to undergo. The system is well-established and in place to assist you in adapting…. Miss Im?”

The doctor that had been explaining in a friendly tone suddenly noticed Seyeon. She was staring blankly like a broken doll. He abruptly stopped speaking and called her name to get her attention.

“So… it’s not cancer, right?”

“Cancer? No way. You are very healthy.”

“Ha. That’s a relief.”

Seyeon’s lips drew into a bright smile for the first time, once she heard the doctor say she was in good health. She was really worried about the sudden urgency in her test results. There are so many gynecological diseases among young women and the elderly these days. She couldn’t sleep the night before because she was trying to figure out how many cases there were that could increase her risk of such diseases.

“However, I’m pretty sure my previous test indicated that I was Beta. The same goes for my parents. Where did Omega come from?”

Women are tested when they reach the age of menarche. She had almost forgotten about it because it had been so long ago. However, she could clearly remember that she hadn’t been identified as either Alpha or Omega.

[DEFINITION: Menarche is the first occurrence of menstruation. Commonly known as a period that comes monthly, or irregularly for some.]

“Even if you have Beta genetics from your parents, you can still emerge as an Omega if the genetics are present from your ancestors. It’s the first time I’ve seen it show up so late…. Hmm, maybe there was something in Miss Im Seyeon’s environment that caused the manifestation.”

The doctor gave a slight smile and implied that he wanted to study her situation thoroughly. Seeing him view her as a research subject made Seyeon feel unsettled. The doctor’s eyes gleamed as he spoke about the research idea, and he continued to recite that there were other rare and unknown cases. Seyeon had trouble catching on to what he was saying and couldn’t understand half of what came out of his mouth. Furthermore, she was unsure of it because she had spent her entire life living as a Beta with no connections to Alphas or Omegas.

“Miss Im Seyeon.”

“…Ah, yes. I am listening.”

The doctor tapped his index finger on the desk to see if she would divert her attention to him after drifting off in her thoughts. Even though it wasn’t even that loud, Seyeon quickly came to her senses and looked at the doctor.

She found it difficult to accept because it appeared too late. She was relieved she was healthy, but the change in sex had left her stumped. There wasn’t enough time to wait for her to be convinced though. The doctor gave a generous smile as if he understood before continuing to speak in a serious tone.

“You can’t feel it now. Nothing physically has changed yet.”

“Yes. Mistake… No.”

“It’s not.”

When the doctor said no firmly, Seyeon felt a little embarrassed. He didn’t appear to have made any mistakes during the re-examination. However, it was difficult for her to accept because she hadn’t exerpeinced any changes.

“You’ll naturally feel it when your estrus comes. It is also called heat and the terms are used interchangeably. The female Omega’s heat cycle is the same as the ovulation cycle, so…. There’s about two days left before it begins for you.”

[DEFINITION: Estrus is the cycle of recurring periods of physiological changes that are induced by reproductive hormones for sexual receptivity and fertility. It is also commonly referred to as heat. It is common in female mammals, and presents as ovulation in humans.

Ovulation is the release of an egg from the ovary that occurs roughly 13 to 15 days before the start of a period/menstruation. The ovulation cycle varies month to month, but can roughly be tracked. However, some individuals may not experience this cycle at all.]

“Es-estrus….”

Seyeon mumbled as she seemed to be surprised about the word. The doctor calmly scanned over her medical record and questionnaires while spreading out two fingers over the information. Seyeon was bewildered by his long index finger and middle finger.

“An Omega’s pheromone is a substance that attracts Alphas. The amount of pheromones produced during estrus is hundreds of times higher than normal. Not only do the pheromones excite Alphas, but they will also make you feel a strong sexual desire that you can’t control. It can only be resolved through copulation. You only have two days remaining until that time comes for you.”

“…….”

“The most important thing is how you go through your first estrus…”

Seyeon’s eyes trembled as if there had been an earthquake, when he said she’ll have intense sexual desire that she can’t control in two days or so. The fact that it can only be handled by sex with an Alpha, made her feel like it was worthy to call it heat. She felt shocked that she lost her words, but the doctor reassured her that there was nothing to worry about.

“In the past, there wasn’t a system established to handle an Omega’s heat and partners, so individuals had to do it on their own. However, now that we have a proper system, you simply have to do what you are told.”

It was like they were telling her that they would feed her everything she needed if she just opened her mouth. He changed the subject calmly, but misunderstood Seyeon’s reaction. He doubted himself and thought he might be talking too lightheartedly without getting his meaning across.

“First, you have to receive compulsory education about your new condition. I will be Im Seyeon’s education manager and primary care doctor. We will be meeting frequently in the future.”

The nurse in the room had been busy moving around as the pair talked. She walked towards Seyeon and placed a bunch of items in front of her at the doctor’s beckoning. There were electronic devices such as smartphones, smart pads, smart watches, and smart calendars when she looked at it.

“These are basic supplies. The calendar is for estrus cycle management. It will be used in conjunction with the hospital to provide smart health care. The Omega class has essential apps on smartphones and tablets that will assist you in adapting to your change in sex.”

“Are you giving me all of this?”

“Yes. Aside from that, we’ll be giving you a congratulatory check for the revealed change status in class. The same goes for living expenses and housing assistance.”

The supplies alone were amazing. When the nurse said they would also provide financial assistance, Seyeon’s mouth dropped open. According to the doctor, detailed benefits such as medical support and day to day living costs are listed in the brochure. It is best to wisely accept it.

“The more urgent matter to handle is that you are running out of time. You have to match with a partner first to prepare for your first heat.”

“What?”

“I told you. Everything is managed and handled by ABO.”

He angled the computer monitor on one side of the desk in Seyeon’s direction. He was displaying several photos on the screen. Suddenly, she went over the photos and noticed that they were all incredibly handsome men. It was a telling sign that made it easy to tell they were Alphas just by looking at the photos.

She alternated between looking at the screen and the doctor with a confused look in her eyes. He smiled and gestured toward the screen.

“Miss Im is old enough to be nominated, but it’s better for you to pick someone yourself because they are younger than you. I’ll pair you with any alpha that suits your taste, so look carefully and choose.”

“…….”

Seyeon found it difficult to believe that a doctor would match her for her first estrus with a partner of her choice. However, she knew the common sense she had relied on her entire life was no longer valid.

The doctor told her that she needed to have a sexual relationship with one of the men in the pictures. The heat would be in two days, but she would pick now rather than later.

Should I call this god’s blessing?

“Don’t you have something called an inhibitor as an option in the system? Once I use it…. Two days is too soon. My heart isn’t ready.”

“An inhibitor? Where did you hear that?”

“On the internet…”

The doctor had listed the positive qualities of the younger generation, but he made a funny face. His expression hardened as soon as the word ‘inhibitor’ was mentioned. At the extreme change in atmosphere, Seyeon was unsure what she had said that caused him to react negatively. She mumbled the end of her words and took a hint not to say anything else. He clicked his tongue when he heard the word ‘internet’ as a sign of disapproval.

“90% percent of users on the internet are Betas, so what you’ve come across online is inaccurate. They make up stories without even knowing proper information and details. Inhibitors are not omnipotent.”

Inhibitors modulated the secretion of Alpha and Omega pheromones. It was created because excessive pheromones made it impossible to live a normal life. The only missing information about it was that it was 100% ineffective during estrus. Pheromone secretion is part of the physiological makeup of an individual, and suppressing it forcibly puts a lot of strain on the body to the point of horrible side effects.

“Alphas will be fine if they use it, but Omegas are at more of a risk if they do. Mild dizziness, vomiting, abdominal pain, and headaches to severe fainting, irregular bleeding or ovarian cysts. Especially in the case of abuse of inhibitors, there is a high risk of infertility.”

“That’s… scary.”

“It’s terrifying. I’m not sure if it was before the ABO system was established, but no Omega currently uses inhibitors. They are well aware of the serious side effects if they do. The system handles everything so you don’t have to worry about using inhibitors.”

Even mentioning infertility made Seyeon afraid of wanting to use an inhibitor. She wasn’t sure if it’s a one-time use item, but it contained effects she would have to deal with for the rest of her life. She didn’t want to use it because of that reason alone. However, the doctor continued to explain because there was still more to understand about the use of such medicine.

“And, most importantly, your pheromones are established during the first period of estrus. If you forcibly suppress it, the physiological balance collapses for a long time. Imagine the sudden onset of estrus at any time. Just like an irregular menstrual cycle.”

“…That’s terrible.”

“It is.”

The side effects were worse than she could have thought, but using it at all during the first estrus was out of the question. In the end, Seyeon couldn’t help but return her gaze to the screen.

There were still five or six pictures on the bright screen that pleaded with her to examine them carefully. It was difficult because the beaky eyes seemed to be begging her to pick them. Of course, it wasn’t as if there wasn’t anyone more attractive than the other. Seyeon laughed out loud even in this situation because she thought it was ridiculous. She was arguing with herself about who looked better and who she liked more.

“It is not preferable to think that you will be able to persevere in the absence of a partner. There are mishaps even in the safest of situations. Rarely occurs, but even Betas can be attracted to Omegas pheromones in extreme cases.”

The doctor added the information to emphasize how serious one mistake could be. It would be difficult to be protected by the law in such cases.

“That’s why the ABO connects you with an Alpha. Omegas can now safely undergo their heats with an Alpha that is guaranteed to be reliable.”

Only then did Seyeon comprehend why doctors conducted themselves in such a manner. It was almost like a blind date arranger.

“Their ages range from at least 22 and up to 26. They are all younger than Miss. Im.”

“…….”

They were all younger than her, which was emphasized quite a bit. He was serious when he listed the positive characteristics of these younger men, but he couldn’t hide the mischievous tone in his voice as he spoke again.

“Young Alpha’s minds have not yet become stubborn and hard headed, so they will understand and consider Miss Im’s situation. I’m not saying this just to joke, but there have been a lot of stories about Alphas becoming more selfish and arrogant as they grow older. Also, isn’t it true that dating younger men is the trend these days? Betas also like younger and handsome men.”