The sound of medical devices filled the room. A person is lying on a medical bed with various medical equipment attached to his body. Slowly the patient's eyes opened. 'am I still alive?' thought the man. His body felt heavy, a collection of memories entered his mind making him wince his head. Slowly he rose with his heavy body. Just then someone else enters and is shocked. "Changmin call Sehun here" said the man and the man called Changmin immediately rushed away. "captain" called the man with the medical equipment.

Shortly after, Sehun came and examined the patient. "Everything is back to normal, only he still needs a full rest, captain," Sehun explained. "Thanks" Changmin said happily. "Then rest" said the man called the captain named Jung Yunho and they left the room to let the patient rest.

The patient lay down while filtering the information that entered his head after he woke up. The owner of this body named Park Hyun is a member of the tiger special forces team. This world is called Black Island. The man named Jung Yunho was the captain, the man named Shim Changmin was the second person who had a hand in the team's decision making. He is the vice-captain. While the last man is Oh sehun from the medical team but his combat ability is extraordinary. Black Island is in crisis because of the zombie virus that is rampant here. In carrying out his duties, Park Hyun was bitten by a giant bee insect that was infected with the zombie virus. All living things that got hit by the virus are called Litz here and are in a coma all this time.

Before Soohyun's soul took over this body, it could be assumed that Park Hyun had disappeared from this world. Soohyun is really confused why he can be here as he remembers being angry and taking revenge for the death of his friend named Mingyu before he was shot on the spot and can be assumed to have died in the world there. What really happened until he was pulled into this world? Is this a parallel world? Soohyun never believed it but it seems that the world does exist. Park hyun's desire is very simple, namely to protect the black island and save everyone from being exposed to the deadly zombie virus again.

"Very easy. I will help you realize your dream Park Hyun. Therefore, rest in peace there. I will kill all zombies and litz that I meet here." Soohyun mumbled smiling. From now on he is Park Hyun. Killing zombies is easy for him after all he is a famous assassin in his old world. He smiled bitterly whether the police accepted the gift he sent. It was his final gift before his death enough to destroy the entire future of the mingyu assassins as well as the woman who framed mingyu. He will fully avenge the price they have to pay for killing Mingyu. He hoped Taehyung wasn't so angry with him that he didn't even want to bury his body. He tricks the killers out so that the evidence is safe to the point where he pretends to want to kill the woman before he is shot dead. Dying horribly but being able to take revenge isn't too bad.

#next day

Park hyun wakes up feeling refreshed. He went into a tube filled with healing liquid that made him recover faster. Hyun walked around the headquarters casually and headed for the cafeteria. "Over here" called Tao. Hyun headed towards the origin of the voice. "I see you're better now" Yixing said watching Hyun. Hyun just nodded. "Sure, Sehun is great in medical terms, so Hyun can wake up faster" said Tao proudly. "In two days we will enter the city of J for a rescue mission" added Tao happily. "Isn't city J under the authority of Team Eagle?" hyun asked strangely. "Since yesterday there has been no news about Team Eagle and Team Blue. So we will help the Eagle Team while Fox will be sent to help Team Blue," explained Yixing. 'their team is so big many times our team but was swept away it seems these zombies look interesting' thought hyun smirking. Yixing and Tao looked at each other confused by Hyun's behavior.

In these two days Hyun's intensive training began but the results surprised everyone not only his body was not stiff after a coma for several months but his speed, agility and accuracy in every movement also increased drastically. Even this kind of thing was rare for the special forces members here. Everything looks like hyun has been specially trained for a certain period of time. A surprising thing that never existed and they began to assume this was due to the litz poison that made Hyun completely transformed.

The meeting for the rescue mission begins. Everyone seems to be focused on the map but Hyun is only at one point. "What do you see?" Changmin asked confused. "This building, I want to go to this building. Can I captain?" Hyun asked seriously while still staring at the building. "Okay, but be careful. The front of this building may be full of zombies and there is danger in the building too" Yunho advised. "Understood, captain," said Hyun firmly. "Okay, the meeting is over. The team has been formed and the area we are looking for has been determined. Take an early break and we will leave tomorrow morning" explained Yunho in return with a nod.

---J city---

All the tiger team members have started to disperse and look for the survivors while hyun goes to the tall building that is there. He was greeted by hundreds of zombies there, hyun smirked and began to take out the sword in his right hand as well as a military knife in his left hand and began to eradicate the zombies that blocked his way in an instant and continued forward like a whirlwind.

@ building

Soohyun started to enter and explore every room and found someone. "what's your name?" hyun asked seriously. "song joongki the captain of the eagle team." Said the man named Joongki. Hyun gave him a bottle of water and was accepted by Joongki. "Is anyone safe?" hyun asked seriously. Joong Ki shook his head. "We're getting out of here now. Can you walk?" hyun asked. "Yes," answered Joongki slowly getting up after drinking water.

Hyun activated his communication device. "Serpent reports. Change" said Hyun casually. "Red accepts. Change" said Yunho on the other side. "Captain I found the captain of Team Eagle in the building and there were no survivors other than him" explained Hyun. "Ok we will go to the meeting place now." Yunho replied. "Okay captain" Hyun replied casually. As soon as they came out they were greeted by so many zombies that Hyun started to eradicate the zombies and began to forget that he also had to help the survivors until Joongki's screams were heard. Hyun took care of the zombies and started examining the bite wound on the arm. Hyun opened his bag then cleaned by splashing alcohol on his hand and took a scalpel and opened the bite wound. Hyun sucked all the blood that was on Joongki's hand but the changes were starting to show. Hyun took out another scalpel and sliced ​​his arm and dripped blood on Joongki's wound. Hyun looks worried about the result.

Slowly the changes began to appear. Joongki's face color started to normal. Hyun took a bandage and wrapped Joongki's wound and his own wound before gargling with water. Hyun packed his things and started to lead Joongki out slowly but met Yixing outside. "Let me carry him." Yixing said in return of Hyun's nod. Yixing piggybacked Joongki while Hyun was on guard against zombies. Until the meeting place they started to get in the car and rushed back to headquarters.

---headquarters---

Joongki was taken to the medical room for intensive care by Sehun because of Hyun's information. A lot of rumors started running around when they got there making hyun roll his eyes lazily. It was about a member of the Fox team who lost many members on a rescue mission.

@yunho's office

"Do they think zombies are herbivores? After all, there are very few trained special forces members right now. Fox only has 8 members just because they lost 4 members, they started gossiping here there aren't even any survivors in the base they left." Tao said annoyed. "Agreed" Yixing replied calmly. "Let them alone. This is not the first time" said Changmin sighed.

Knock knock

"Enter" Yunho replied. Mark, changwook and jackson went inside. "I need your help," Mark said seriously. "Sit down" Yunho said nodding. "What can we help?" Changmin asked. "T high school is the school where my nephew is. I want to ask your help to help me evacuate the students and also find my nephew," said Mark seriously. "T high school is on the border of city Q and city Z. Shouldn't that area have been evacuated already?" Changmin asked confused. "Contact with the school was cut off," explained Changwook sighing.

"It seems that your nephew is also there vice-captain" Hyun said flatly. "That's right," replied Changwook. "Captain I don't think it's bad if we go there for this mission. Besides, I'm quite bored to be here" Hyun said casually. "Agree, don't hear bad rumors" Tao said looking excited. "Okay. We will help" Yunho agreed.

"Thank you" Mark said smiling. "After this is over, I challenge you to fight with me" said jackson looking at hyun. "No problem" Hyun replied yawning then left. "Where are you going? We haven't talked about a rescue strategy," Jackson protested.

"As long as you don't get in my way then there's no problem" said Hyun before leaving. "You!!" mumbled jackson furiously. "Leave him alone, he needs to rest. I can guarantee that he won't interfere with the operating system," said Yunho seriously. "Is he the park hyun who survived Litz's poison?" Changwook asked. "Yes, but he still has to be monitored closely. Because no one knows when the poison will react again," Changmin explained in response to a nod from the Fox team. Rescue strategies began to be discussed.

Hyun was looking at Sehun who was working on his computer. "Why are you so active?" Hyun asked innocently. "Because saving lives is my duty" said Sehun still full of concentration. "Military doctors are different," Hyun muttered quietly. "What did you say?" Sehun asked surprised. "It's okay. I went back to my room" said hyun then left. "I clearly heard him speak but why is he talking like that?" Sehun asked himself confused.

#next day

They all went to T high school. Until there are a lot of zombies swarming the gate. Hyun descended quickly and began to exterminate the zombies that were in his way. Tao, yixing, changmin and yunho also did the same as did mark, changwook and jackson.

"This gate is automatically locked from the inside," said Tao, who was the first to arrive at the gate. The swarming zombies were soon exterminated. Hyun took out a laptop from his backpack and started to enter the school gate security system and started attacking quickly. Slowly the door opened, they took their vehicle inside.

After they entered, Hyun joined the entrance to the front of the gate before starting to close the gate again and increase the security of the system. When he finished, he closed his laptop and put it in his bag.

"It's finished?" Yixing asked. "Yes, where are the others?" Hyun asked looking at Yixing who was waiting for him there. "They're checking the school. Do you want to come?" Yixing asked innocently. Hyun shook his head. "Then we will wait here" Yixing said casually. Slowly the students started to get out and get on the bus. Changwook went out with his nephew, Park jinyoung. Behind him were several boys and girls.

Slowly yunho, changmin, and tao came out with jackson. "Where's team leader Fox?" Yixing asked. "He's still looking for his nephew," Jackson explained. "You mean Lee Soo Hyun?" Jinyoung asked starting to talk. "Yes," answered Jackson. "Since this morning he has not been seen at all" explained Jinyoung.

DEG

Hyun's heart was beating fast. Hyun immediately ran into the building very quickly. "What is up with him?" asked jackson surprised. Everyone just shook their heads in confusion.

@school roof

BANG

The roof door collapsed due to Hyun's uncontrollable kick. Hyun saw a boy lying there. When Hyun approached, he was silent for a long time. Mark ran in with 3 boys. Mark immediately carried the man on his back with a little help and then walked out.

"Leader" called a man. "Leader" called another man. "LEE SOO HYUN! BE AWARE!" shouted the last man. Hyun turns to scold but stares at the three in shock. "Wang...Wang Yibo, Xiao Zhan and Kim Taehyung. What are you guys doing here?" Hyun asked surprised. Xiao Zhan threw a bracelet at Hyun. Hyun catches the bracelet and is shocked. "This isn't Mingyu's?" Hyun asked surprised. "That thing brought the three of us here" Taehyung explained.

Hyun laughed blandly. "You shouldn't have come. Then I'm older than you how dare you call me by name!" hyun said smacking xiao zhan making xiao zhan frown. "Then I'm here named Park Hyun. Don't call Lee Soohyun," added Hyun, in response to the three nodding. "What identities are you guys wearing here?" Hyun asked suspiciously. "Student" Taehyung answered. "Student" replied Xiao zhan. "Student" answered Yibo. "You guys came to visit taehyung and got trapped here?" Asked hyung sighed. The three nodded. "My sweet brother, come with me now" said Hyun smiling sweetly.

"Actually the reason we're here is because Lee Soohyun is here," Yibo explained. "I know. Don't worry, I'll take care of you here" Hyun explained sadly before going down. "He'll throw us out later," Taehyung grumbled sullenly. "He won't. You also know the reason why he kicked us out. He didn't want us to get hurt" said Xiao zhan with a sigh. The three follow hyun finally.

@bus

"You are late!" Jackson protest. Hyun rolled his eyes bored. "Captain, I will take the jeep in the parking lot," Hyun explained casually. "Okay, don't be left behind" Yunho agreed. Hyun nodded.

@jeep

Hyun drives silently. "Brother, can we come with you?" Taehyung asked worriedly. "Don't worry, there's no problem," Hyun said casually. "Can we help eradicate zombies? We can do it" explained xiao zhan excitedly. "Sure, if the captain allows you" Hyun explained. "You seem very sure they will pass" said Taehyung confused. "The two people behind this will not be snake and bird if they are not great at fighting" said hyun smiling. "Yeah," Taehyung said, frowning.

The group entered the Z city when it was late afternoon. They went straight to headquarters, unlike Hyun who stopped at a restaurant. "Come down, we eat here" Hyun said smiling. Xiao Zhan was the most excited and quickly went down followed by the others.

@corner of the room

The table is full of Hyun's orders. Xiao Zhan ate with a happy face. Hyun smiled at him and placed a piece of roast duck for Xiao Zhan. "Brother, you are unfair." said taehyung pouting. Hyun put a piece of roast duck for taehyung and yibo too. "Eat a lot while you can. We don't know how long we can eat meat like this again" explained hyun.

The three of them nodded slowly. Hyun looked at them smiling. He was happy to see his sweet little brother again. They are the spirit of his life. 'If I don't take revenge on them. Could they still live with me? But at least here I have a chance to make amends.' thought hyun with an inexplicable look.

"Brother, eat it," said Yibo who was chopping fried chicken meat into Hyun's bowl. "Thank you" hyun said smiling softly and ate in silence. The three of them looked at him sadly. The three of them clearly knew what Hyun was thinking.

After they finished eating, they headed back to headquarters.

@hyung's room

"You guys sleep in bed" Hyun said casually. "There are only 3 beds here. Where do you sleep, brother?" Taehyung asked worriedly. Hyun brought out the bedding and blanket. "You sleep here alone, leader?" asked xiao zhan. Hyun nodded "because I have a virus from Litz so I'm in isolation." Obviously Hyun.

The three nodded in understanding. Hyun told them to sleep first while he met Yunho.

@yunho's room

"Captain, can you please take my two brothers into your wing?" Ask hyung seriously. "Hyun ah, they..." Yunho's words were cut off. "I guarantee their skills are good and will not disappoint" said Hyun seriously. "Then they both have to pass the test tomorrow, how about it?" Offer changmin. "Thank you vice-captain" said hyun smiled and bowed as an expression of gratitude. "Then I'll say goodbye first" Hyun said looking excited before leaving. "Changmin ah, this.." Yunho's words were cut off. "You don't see? He doesn't want to be separated from his brother. Besides, if his brother doesn't meet the requirements, he won't be able to refuse anymore" explained Changmin.

"What if they meet the requirements?" Yunho asked. "We can accept them, after all we also lack people" said Changmin casually. Yunho took a deep breath.

#next day

@test room

Dozens of zombies were issued for the test that will be carried out by both xiao zhan and yibo. Both of them seemed too calm for an amateur. The zombies started to approach them when xiao zhan started pulling out his sword as well as yibo. Slowly the swords in their hands slashed at the approaching zombies. Xiao zhan shifted to the left and started slashing at the zombies like chopping vegetables. While yibo shifted to the right slashing the necks of the zombies quickly. Ten minutes later dozens of zombies have died horribly.

All members of the Tiger team were silenced by the actions of this child duo. The two of them came out excited. "Aren't they great?" Proud taehyung. "Where did you learn to fight like that?" asked jackson who was watching shortly after xiao zhan and yibo started fighting zombies. "Of course study with brother. Who else?" Taehyung said proudly. Hyun patted taehyung's head making taehyung squint in disapproval.

"What is your greatness?" Challenge Jackson. "I'm a hacker, why?" Taehyung said annoyed. "Hackers? Did you update the school's security system?" Sehun asked in amazement. Taehyung nodded enthusiastically. "Great kid" yixing praised. "From today onwards you are the official members of the Tiger team and your code names.." Yunho's words were cut off. "Snake and bird" said hyun cut in.

"Could you not interrupt?" Yunho said annoyed. "Looks good. Yibo is a snake and xiao zhan is a bird" Changmin agreed. Yunho sighed tiredly. "Why are you here, Jackson?" Ask tao finally. "Our team members will also recruit three new people. Two of them are currently in training. So I want to book a test room for next week" said Jackson seriously. Another nod in response.

@canteen

Hyun, xiao zhan, yibo and taehyung were eating when a man sat there. "Taehyung" the man said excitedly. "You're here Soohyun." Taehyung said excitedly. "You're here too," said Lee Soohyun excitedly, "Introduce him, our brother, his name is Park Hyun," Taehyung explained, pointing at Hyun. "You're the brother who adopted Yibo, Xiao Zhan and Taehyung. Nice to meet you, my name is Soohyun. Lee Soohyun," Soohyun explained. "Hn," he answered shortly.

"If you're weird I'm here. It's because my uncle is here" said Soohyun nervously. "Mark from Fox team leader. You don't have to explain to me about it. And it's better to take good care of your wound," said Hyun coldly. "Yeah, I'm sorry" Soohyun said awkwardly. "You let Hee Mi's men hit you again" Taehyung said annoyed.

"They misunderstood me. I'm fine," said Soohyun smiling. Hyun's grip on the chopsticks hardened hearing that. "Tch, stupid" Hyun snorted disapprovingly. Soohyun smiled awkwardly due to Soohyun's insinuation. "See who is this? Isn't this stupid Soohyun" said a man who came and started to disturb Soohyun. "Leon stop" Taehyung said angrily. "It's not that this is a minion from Lee Soohyun," added Jack. Xiao zhan looks angry but yibo stops him.

"Don't come near our hee mi. He doesn't deserve to be close to a stupid kid like you" said John. "Of course" said jack looking down on Soohyun. Leon took a stainless plate containing rice, soup and side dishes and splashed Soohyun's head with it. Xiao zhan and yibo are furious and so is taehyung.

A kick sent Leon tumbling a few meters from where he was standing. "You!!" Leon said angrily looking at Hyun who turned out to be the kicker. "You don't know who Leon's father is? How dare you!" shouted jack angrily. "Low creatures!" shouted John angrily. Hyun sent a spinning kick putting the two in an even more embarrassing position than Leon.

"You!!" The three shouted angrily. "Tch, your father is just a small businessman here. How dare you talk nonsense here!" Snorted hyun didn't like it. "What's your name?" Leon shouted furiously. "Park Hyun, why? What can you do? I should have baited you into zombies," sneered hyun. "Low creatures!" Leon shouted furiously. "What did you say?" Tao shouted angrily.

Leon stared mockingly at Tao. "Low creature" Leon said proudly. "Fox Leader can't we just bait it on the zombies?" Tao asked casually looking at Mark. "Do as you please" Mark said approaching Soohyun. Tao smirked and started to think of a good way. "Wake up," said Mark. Soohyun complied. "We'll clean you up" Mark said taking Soohyun away.

"Where's that damn kid?!" shouted jackson furiously. Hyun pointed at Leon, Jack and John casually. "You did it hyun. You did a good thing" said Jackson before dragging them away. "Hyung, are you okay?" asked xiao zhan worried. Hyun nodded and left in silence. "What is wrong with him?" Tao asked confused. "Our brother died in a terrible way, so hyung won't hold back if someone hurts people in front of him" Taehyung said sadly. "WHAT DID YOU SAY?!" Sehun shouted hysterically.