Season 3 - KO One Re-act

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.

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.

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.

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.

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.

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.

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

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

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.

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.

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.

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.

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.

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

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.

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.

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.

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

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.

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.

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