Investigate

1 Revenge 

2 Justice 

3 Marriage 

4 Detention 

5 Club 

6 Contract 

7 Reception 

8 First Night 

9 Investigation 

10 Professor Min 

11 Jackson Wang 

12 Hell 

13 Pain 

14 Nobody 

15 Boys 

16 Sweet pōisōn 

17 Mistake 

18 Jeon Jungkook 

19 Tales of Jeon Couples 

20 Mōmmy 

21 Pregnant 

22 Sub gender 

23 Twins 

24 Mystery 

25 Cruel World 

26 Dead 

27 Change plan 

28 Kim Victor 

29 Shin family 

30 French Beauties 

31 Loser 

32 Villain 

33 Burn you 

34 Black Swan 

35 University 

36 Blessed 

37 White lotus 

38 Promise 

39 Betrayed 

40 Hate you 

41 Pregnant 

42 Lesson 

43 Rain 

44 Blind dates 

45 Red rose 

46 Regretting 

47 Leaving 

48 Pre-dinner 

49 Reasons 

50 Investigate 

51 Hungry 

52 Bunny 

53 Second Chance 

54 Mood swings 

55 Regrets 

56 Villain 

57 Love 

58 Karma 

59 Sûiçide 

60 Reports 

61 The End (1) 

62 The End 2 

63 - 

64 Mafia Queen 

65 Reborn 

66 Meet 

67 Forgive 

68 Fiancé 

69 Pain 

70 Invitation 

71 No more 

72 Worry 

73 Coma 

74 Hurt 

75 Safe 

76 Infant 

77 Kim Hwa-Young 

78 Awake 

79 Space 

80 Black rose 