KO One (2005)

The high school class KO One takes on students who are derelicts and rejects; a transfer student challenges Da Dong for the position of class boss.

Ding Xiao-yu's musical talent dissolves tension; Da Dong tries to help when Arthur's father is in danger.

Tian Xin is abducted after visiting her brother's tomb, and forced to resign from her teaching job. A friend of Da Dong returns to the country.

Jin Bao-san sees a side of Lei Ke-si that is unknown to others. Da Dong asks the class to find side jobs to help pay Ke-Si's debt.

Lei Ke-si tries to frame Arthur while pleasing all the teachers, making it tough for Arthur to reveal the truth.

An unexpected visitor arrives at Da Dong's house. Dean Jia Yong and Lei Ke-si both want to take An-qi as their pawn.

A madly jealous Lei Ke-si misleads An-qi as he takes the opportunity to confess his love for her. Arthur comes up with a scheme.

Lei Ke-si reveals his true colours and launches a surprise attack on Da-dong, and the two begin a fierce battle.

Da Dong and An-qi reconcile and are a lovey-dovey couple once more. Tian Xin has a new boyfriend, but a difficult decision awaits her.

Da Dong starts to rebel against a teacher and becomes his old aggressive self, raising the suspicions of An-qi and Arthur.

Da-dong tries to embarrass Shao-zong, who wins the admiration of his classmates. Tian Xin discovers the reason for Shao-zong's exhaustion.

The class devise a plan to help Shao-zong patch things up with his biological mother. An-qi and Xiao-yu seem to be something more than friends.

A mysterious man appears many times, but always leaves when Tian Xin arrives. Da Dong's pastor father is hiding a secret.

The class teacher abruptly leaves without a word. An-qi comes to comfort an unhappy Da Dong, who loses consciousness.

An-qi sends a letter to Da Dong, which surprises him. Distracted, Da Dong becomes the victim of Hei Long and Wu Shi.

A new teacher causes turmoil for the class. Two sisters transfer to the school, and the younger one becomes infatuated with Arthur at first sight.

When a comic set that predicts the future is about to be reprinted, it attracts a great deal of attention. It also attracts some people who plan to murder the author

Da Dong attempts to further his fighting abilities. Arthur becomes unusually irritable after being injured by his own sword

A delirious Arthur suddenly wants to hurt everyone around him, but he is stopped by a powerful force of energy at just the right time.

Arthur faces a difficult challenge, Wu-xiong begins ageing at an accelerated rate, and a familiar face arrives.

Da-Dong's parents go missing and even Arthur's father vanishes for no reason. Everyone get ready for the ultimate battle.