It's just his mood swings.

1 Devil is back again! 

2 Introduction 

3 Having Fun! 

4 Ice-cream 

5 Life's good! 

6 Morning as usual. 

7 The head of the family 

8 Mr.Lee in Korea! 

9 Flaunt 

10 Trouble 

11 Saviour : Eomma! 

12 Unknown feeling 

13 Fun! 

14 Mess 

15 Cheated on him. 

16 Wants Revenge! 

17 What I want. 

18 The devil is back 

19 All of them! 

20 Jungkook~ 

21 His fault 

22 Bang! Bang! 

23 2 hours! 

24 Come out of his shell 

25 Kinda good! 

26 Agent! 

27 Who is the enemy? 

28 Planning! 

29 Start our Vengeance! 

30 classic trick 

31 The bug is deployed! 

32 Spying team 

33 Undercover agent. 

34 The fish is in the trap 

35 I wasn't! 

36 finding it out! 

37 Afraid 

38 Those two! 

39 New secretaries 

40 He is the man? 

41 Just an example. 

42 Pledge your loyalty 

43 stressing, tensed and worried 

44 The Demon Aunt 

45 Babies! 

46 It's just his mood swings. 

47 scared 

48 Old tricks 

49 After the rough night 

50 They do it! 

51 Tired 

52 The murderer got the knife! 

53 It was so easy- 

54 caught! 

55 Henri, A man who is cunning! 

56 We lost.. 

57 Play my part 

58 Why? 

59 Get him ready 

60 Sénorita~ 

61 easy targets 

62 Preparing for the gift. 

63 The heart 

64 His another phase 

65 Tired Taehyung 

66 Family reunion 

67 The end! 