The Storyline
Meet Kim Ui-gyeom — a model student on the outside, but a survivor of abuse and bullying on the inside. At school, he’s invisible; at home, he’s hurting. But everything changes when he meets Kang Yoon-ki, a quiet genius with a cause.
Together, they form a secret vigilante crew known as the High School Heroes — masked, fearless, and ready to fight the toxic culture that thrives in their school halls.
It’s dark, gritty, and surprisingly uplifting. A story that dares to say, “Enough is enough.”
Quick Drama Facts: ONE: High School Heroes
Genre: Action, Youth, Drama
Episodes: 8
Release Date: May 30, 2025
New Episodes: June 6 & June 13
Where to Watch: Wavve (Korea), Dailymotion (international)
Binge-Worthy Meter: 9/10
Masked justice has never looked this raw and real.
Trailer and More About ONE: High School Heroes
Featured Image by: MyDramaList
Main Cast & Characters of ONE: High School Heroes
Lee Jung-ha as Kim Ui-gyeom – The quiet top student who finds strength through justice.
Kim Do-wan as Kang Yoon-ki – A sharp mind and calm demeanor, hiding his own scars.
Kim Sang-ho as Kim Seok-tae – The father whose abuse pushes Ui-gyeom to the edge.
Kim Joo-ryoung as Myung Da-bin – A mother torn between silence and survival.
Every character adds a layer of realism and emotional weight to the story — no cardboard villains or heroes here.
Why You Should Watch ONE: High School Heroes
You’ll love this drama if you’re into:
✅ High school revenge stories with heart
✅ Intense fight scenes without losing plot depth
✅ Characters who grow through pain, not just power
✅ That satisfying “masked justice” trope done right
✅ K-dramas like Weak Hero Class 1, Extracurricular, or Juvenile Justice
What really hits hard is the emotional core — it’s not violence for the sake of drama. It’s a cry for help, healing, and change.
Final Takeaway
ONE: High School Heroes isn’t just action-packed — it’s purpose-driven. It fights for the voiceless and shines a light on the darkness too many teens face. Prepare to be moved, shaken, and maybe even inspired.