01. Episode 1

The KO List undergoes dramatic changes. Da-dong is assigned to return to class KO One to investigate, where he reunites with the teacher, Tian Xin.

02. Episode 2

Da-dong and Wan-jun are ambushed as they investigate the reason of the abnormal fighting count. Lei Ting cannot tell how she feels about Wan-jun.

03. Episode 3

Everyone is shocked when the new class teacher shows up. A letter Lei Ting receives prompts her to confront the past and face the future.

04. Episode 4

The class is on the verge of conflict as three ill-intentioned mysterious characters transfer into KO One. Someone issued Lei Ting a duel challenge.

05. Episode 5

Da-dong suddenly intervenes when Lei Ting and Gu Zhan battle against each other. The magical power of Li Yan-yan makes What's-his-name uneasy.

06. Episode 6

What's-his-name wants to win Li Yan-yan's heart, but things do not go as planned. A puzzled Da-dong has no choice but to seek help from Lei Ting.

07. Episode 7

Da-dong receives a critical phone call, which is hung up by Yun-han. Soon after, the cellphone suddenly disappears.

08. Episode 8

Jin Bao-san is heartbroken. Lei Ting and Da-dong accidentally discover an unknown side of What's-his-name.

09. Episode 9

Everyone in the class receives an invitation. Wan-jun becomes aware of Lei Ting's feelings. An unexpected visitor turns up at Bale High School.

10. Episode 10

Hua Ling-long tracks down the druggie, and the recording of the drug deal also comes to light. The worst devil in the history of KO One turns up.

11. Episode 11

Da-dong and Lei Ting become closer, which makes Wan-jun jealous. Zhi Ge's father discovers why he is reluctant to take his girlfriend home.

12. Episode 12

Wan-jun suddenly professes his love to Lei Ting. Jin Bao-san is hypnotized and attempts to assassinate Da-dong, but ends up injuring himself.

13. Episode 13

Da-dong adopts the experience of others in order to understand how he feels. Despite the urging of Gu Zhan, Qiu Qiu continues to fall for Wan-jun.

14. Episode 14

Zhi Ge discovers a talking door. Hei-long secretly sneaks into Bale High school. Gu Zhan accidentally uncovers a certain truth.

15. Episode 15

Zhi Ge starts to question the real identity of Secretary Li. Zhi Ge's father begins to look into the case, but ends up falling into danger.

16. Episode 16

Hei-long forces Zhi Ge to open the broadcasting room's door by holding Gu Zhan hostage. Everyone is horrified after the seal is accidentally broken.

17. Episode 17

Wan-jun shows signs of amnesia, but there is nothing Lei Ting can do. Da-dong is finally back, yet someone barges in just as he is about to help out.

18. Episode 18

Gu Zhan rushes to the hospital after being notified that his mother is critically ill. A fight ignites the internal strife between the brothers.

19. Episode 19

There is a remedy for Wan-jun's symptoms, but he will have to pay a great cost. Da-dong refuses to believe that his father has been demonized.

20. Episode 20

Zhi Ge is taken by a mysterious figure. Gu Zhan strives to save him, yet Hei-long appears at this moment, and he seems to have something planned.

21. Episode 21

22. Episode 22

23. Episode 23

24. Episode 24

25. Episode 25

26. Episode 26

27. Episode 27

28. Episode 28

29. Episode 29

30. Episode 30

31. Episode 31

32. Episode 32

33. Episode 33

34. Episode 34

35. Episode 35

36. Episode 36

37. Episode 37

38. Episode 38

39. Episode 39