KO One Return (traditional Chinese: 終極一班2; simplified Chinese: 终极一班2; pinyin: zhōng jí yī bān 2; literally: "The Ultimate Class 2") is a 2012 Taiwanese drama starring Jiro Wang, Pets Tseng, Sam, Brent, and Sylvia Wang.
Zhong Ji Yi Ban, or the Ultimate Class, is now led by a girl named King (Pets Tseng).
He decides to once again enroll into Ba Le High School and return to the Ultimate Class to investigate the disappearance of powers and his friends.
The past leader of "Zhong Ji Yi Ban" (終極一班 / Ultimate Class).
Zhong Wan Jun (中萬鈞) portrayed by Sam He is one of the members of the Ultimate Class.