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ONE: High School Heroes poster

ONE: High School Heroes (2025)

8.1 1 season 8 episodes Ended

Action & AdventureDrama

A former model student, pushed by domestic abuse and bullying, joins a group that stands up to school violence and defends its victims.

Watch S1 E1 Latest: S1 E8

Seasons & episodes

Episode 1May 30, 2025 · 51m

“How are you going to fight tomorrow? It starts tomorrow." After losing the cassette, Ui-Gyeom meets Yoon-Ki and their normal life is shake…

Episode 2May 30, 2025 · 46m

“Fighting is a talent, after all.” After a fight with Seung-joon, he encounters an unexpected accident.

Episode 3May 30, 2025 · 47m

“I don't want to give in, not to them...” The resolve to fight back. Despair, visions, and an unexpected hand lead him on.

Episode 4May 30, 2025 · 41m

“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.

Episode 5Jun 6, 2025 · 46m

Episode 6Jun 6, 2025 · 47m

Episode 7Jun 13, 2025 · 48m

Episode 8Jun 13, 2025 · 49m

Cast

Lee Jung-haKim Eui-gyeom

Kim Do-wanKang Yoon-ki

Kim Sang-hoKim Seok-tae

Kim Joo-ryoungMyeong Da-bin

Shin Jun-seopNam Seung-Sik

Lee Chan-hyeongSung-Wook

Shin Jae-whiLee Ki-Yoon

Lim Sung-kyunKim Seung-joon

Yuk Jun-seoLee Geol-jae

Yoo Hee-jeChoi Ki-soo

Im Hyun-taeChoi Hong-il

Hong Min-giKim Nam-hyeop

Shin Hyun-sooKim Su Gyeom [Eui Gyeom's brother]