S01E0151:141. Episode 1“How are you going to fight tomorrow? It starts tomorrow." After losing the cassette, Ui-Gyeom meets Yoon-Ki and their normal life is shaken up.Episodes — Season 1
Season pageS01E0151:141. Episode 1“How are you going to fight tomorrow? It starts tomorrow." After losing the cassette, Ui-Gyeom meets Yoon-Ki and their normal life is shaken up.
S01E0246:002. Episode 2“Fighting is a talent, after all.” After a fight with Seung-joon, he encounters an unexpected accident.
S01E0347:063. Episode 3“I don't want to give in, not to them...” The resolve to fight back. Despair, visions, and an unexpected hand lead him on.
S01E0441:574. Episode 4“The problem is there are too many bad guys in the world." Anger with nowhere to go and shaky justice. Yun and Yi decide to “revolutionize.
S01E0546:235. Episode 5
S01E0647:456. Episode 6
S01E0748:117. Episode 7
S01E0849:588. Episode 8Where to stream ONE: High School Heroes
No streaming offer listed in the United States yet.
Availability provided by JustWatch via TMDB. Offers in the United States, subject to change.
ONE: High School Heroes synopsis
A former model student, pushed by domestic abuse and bullying, joins a group that stands up to school violence and defends its victims.
ONE: High School Heroes cast
Lee Jung-haKim Eui-gyeom · 8 ep.
Kim Do-wanKang Yoon-ki · 8 ep.
Kim Sang-hoKim Seok-tae · 8 ep.
Kim Joo-ryoungMyeong Da-bin · 8 ep.
Shin Jun-seopNam Seung-Sik · 8 ep.
Lee Chan-hyeongSung-Wook · 8 ep.
Shin Jae-whiLee Ki-Yoon · 8 ep.
Lim Sung-kyunKim Seung-joon · 8 ep.
Yuk Jun-seoLee Geol-jae · 8 ep.
Yoo Hee-jeChoi Ki-soo · 8 ep.
Im Hyun-taeChoi Hong-il · 8 ep.
Hong Min-giKim Nam-hyeop · 8 ep.
Shin Hyun-sooKim Su Gyeom [Eui Gyeom's brother] · 8 ep.
Ha MinKim Ui-gyeom Aunt (Eps 3) · 1 ep.About the series ONE: High School Heroes
ONE: High School Heroes is a series (action & adventure and drama), airing on wavve since 2025. It has 1 season and 8 episodes. The series ended on June 13, 2025. Cast members include Lee Jung-ha, Kim Do-wan and Kim Sang-ho. It is rated 8.1/10 by 74 TMDB users.
Frequently asked questions about ONE: High School Heroes
Where to watch ONE: High School Heroes online?
No legal streaming offer is listed in the United States for ONE: High School Heroes yet (source: JustWatch via TMDB). Each episode has its own page with this information.
How many seasons of ONE: High School Heroes are there?
ONE: High School Heroes has 1 season for a total of 8 episodes.
Has ONE: High School Heroes ended?
Yes, the series has ended: the last episode aired on June 13, 2025.
Who stars in ONE: High School Heroes?
The lead actors are Lee Jung-ha (Kim Eui-gyeom), Kim Do-wan (Kang Yoon-ki), Kim Sang-ho (Kim Seok-tae), Kim Joo-ryoung (Myeong Da-bin), Shin Jun-seop (Nam Seung-Sik).
