ko one is a Taiwan drama released in 2005 rated 7.4/10 with 21 episodes. This action series has been watched by 2,648 viewers.
Key Details
| Country |  Taiwan |
| Genre | ActionComedyRomanceSupernatural |
| Year | 2005 |
| Episodes | 21 |
| Duration | 01:10:00 |
| Rating | 7.4/10 |
| Main Cast | Jiro Wang, Calvin Chen, Aaron Yan |
| Type | Drama |
| Content Rating | 13+ – Teens 13 or older |
Plot & Analysis
Story Overview
KO One is a class designed especially for the delinquents and rejects that other high schools would not accept. Even so, everyone in the class is loyal to the leader, Da Dong (KO.3), and would die for friends. Tied for #3, Ya Se, and #4, Xiao Yu soon joins the class. Out of some fortuitous events, their lives become tied together and they become best buddies. Another student, Lei Ke Si, who had been gone for a whole semester, rejoins the class. Although Lei Ke Si seems like a weak kid with only good intentions, Ya Se suspects he is KO.2 because legend say #1 and #2 are capable of concealing their true identities. At the same time, incidents start to occur and the culprit always leads to Ya Se. Is Ya Se wrongly accused? Will the class be able to stand the politics or will it be driven apart?
Critical Reception
ko one has received very positive reviews with a rating of 7.4/10 based on 994 ratings. It is ranked #6,355 in popularity.
Frequently Asked Questions
What is the rating of ko one?
ko one has a rating of 7.4/10 based on 994 ratings.
How many episodes does ko one have?
ko one has 21 episodes, each approximately 01:10:00 long.
What genre is ko one?
ko one is a Action, Comedy, Romance, Supernatural drama from Taiwan.
Who are the main actors in ko one?
The main cast of ko one includes Jiro Wang, Calvin Chen, Aaron Yan.
When was ko one released?
ko one was released in 2005 in Taiwan.
Data sourced from publicly available entertainment databases. Last updated: April 13, 2026.