ONE: High School Heroes (ONE: 하이스쿨 히어로즈) is a 2025 South Korean action coming-of-age television series that delves into themes of school violence, personal trauma, and the fight for justice. Directed by Lee Seong-tae and written by Kim Young-eun, the series stars Lee Jung-ha and Kim Do-wan in lead roles. The drama premiered on May 30, 2025, on Wavve, with episodes released weekly.
Why You Should Watch One: High School Heroes
One: High School Heroes is already drawing strong praise for blending gritty action with emotional storytelling. Writing for Dramabeans, a reviewer noted how the show avoids typical teen drama tropes by focusing on themes like school violence, fractured families, and personal redemption, calling the first two episodes “a compelling mix of heart and hurt, with an undercurrent of righteous fury.” Over on IMDb, early reviews highlight the raw and mature performances, particularly by Lee Jung-ha, whose portrayal of Eui-gyeom “carries surprising emotional weight for such a young character.” Meanwhile, users on Reddit’s r/KDRAMA subreddit are applauding the show’s intense fight choreography and cinematic direction, with one fan stating, “The action scenes are better choreographed than most big-budget dramas this year,” and another pointing out that “character arcs feel authentic, and the story doesn’t shy away from showing how broken the system is.”
The consensus so far? It’s not just a superpowered high school show—it’s a sharp, emotionally grounded K-drama that’s shaping up to be one of 2025’s early standouts.
Release Date & Schedule of ONE: High School Heroes Episodes:
The series comprises 8 episodes, released in batches over three weeks.
Full Release Timeline:
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Episodes 1–4 – Friday, May 30, 2025
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Episodes 5–6 – Friday, June 6, 2025
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Episodes 7–8 – Friday, June 13, 2025
Plot Overview:
ONE: High School Heroes follows Kim Ui-gyeom (Lee Jung-ha), a model student who has always focused solely on his studies. However, he faces domestic abuse from his father and bullying at school. When his suppressed rage reaches a boiling point, he discovers his natural fighting talent. Together with Kang Yoon-ki (Kim Do-wan), a classmate who recognizes Ui-gyeom’s abilities, they form the masked vigilante group “High School Heroes” to combat school violence and protect victims.
Cast:
Main Cast:
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Lee Jung-ha as Kim Ui-gyeom
A top student who, after enduring domestic abuse and school bullying, awakens his fighting instincts to stand up against violence. - Kim Do-wan as Kang Yoon-ki
A classmate who identifies Ui-gyeom’s potential and becomes his partner in forming the “High School Heroes.”
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Supporting Cast:
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Kim Sang-ho as Kim Seok-tae
Ui-gyeom’s father, whose oppressive nature contributes to his son’s trauma. -
Kim Joo-ryoung as Myeong Da-bin
Ui-gyeom’s mother, who begins to change to protect her son. -
Lim Sung-kyun as Kim Seung-joon
A student involved in the school’s hierarchy of violence. -
Yuk Jun-seo as Lee Geol-jae
A character whose story unfolds as the series progresses.
Where to Watch ONE: High School Heroes?
In South Korea, ONE: High School Heroes is available on Wavve. International viewers can stream the series on platforms like Plex and Dailymotion.
