They Know

1 Moving House 

2 New House 

3 New School 

4 Help 

5 Aeri and Minho 

6 Han Lina's Slap 

7 Go For A Walk 

8 Same Dress 

9 Crazy Minho? 

10 Free day 

11 Play Together 

12 Night Garden 

13 Clumsy 

14 Aeri Stay 

15 Worried 

16 Lie 

17 Mother knows 

18 Winter 

19 Campus 

20 Yunjae Flowering 

21 Han Lina again? 

22 Aera Wants To Know 

23 Full of Emotions 

24 Jeha Disappear 

25 Ask 

26 Looking for Jeha 

27 Lucky Jeha 

28 Stay again? 

29 Minho's house 

30 Nervous 

31 Aera and Yohan 

32 The World Is Small 

33 Brothers and Sisters 

34 Mom and Dad's Conversation 

35 Accidentally Meet 

36 Declaration of Love 

37 Not According To Plan 

38 Chance? 

39 Second Statement 

40 Finally Accepted 

41 Surprised!! 

42 Explanation 

43 Dreams of The Past 

44 Festival Starts 

45 Minho's statement 

46 Yunso is Upset, Jeha is Disapp 

47 In Danger 

48 Office Event 

49 Come 

50 They Know 

51 Asking for Permission 

52 Mother's Heart 

53 Commitment 

54 Dramatic Rain 

55 Jeha's house 

56 School 

57 Wrong View? 

58 Bitna Nervous 

59 Accusation 

60 School Fight 

61 Rumors 

62 Kim Naya 

63 Fight 

64 Alea and Aeri 

65 Insider? 

66 Expelled From School 

67 Admit Mistake 

68 Bribery 

69 Looking For Evidence 

70 Arrest 

71 Yunso Knows 

72 In The Court 

73 Revealed 

74 Plan 

75 Before Application 

76 Engagement day 

77 Together 

78 Go To Germany 

79 Miss Each Other 

80 Past 

81 Back & Trouble 

82 His Responsibility 

83 Happy Family 

84 Before Starting 

85 Wedding Day 

86 Together 

87 Pregnancy 

88 Daily Activities 

89 Contraction 

90 Gone Forever 

91 Special Chapter 