ONE: High School Heroes: Story, Cast and Series Facts

Story and premise

A school action drama that depicts the story of a model student who once dedicated all his attention to studying but finds himself entangled in domestic violence and school bullying, compelling him to make a transformative decision. "High School Heroes" pertains to a group formed by the main characters who stand up against school violence perpetrators on behalf of the victims.

Series details

• Title: ONE: High School Heroes
• Format: Scripted
• Language: Korean
• Genres: Drama, Action
• Premiere date: 2025-05-30
• Final broadcast date listed: 2025-06-13
• Status in TVmaze: Ended
• Web channel listed by TVmaze: wavve
• Network country: Korea, Republic of
• Typical episode runtime: 47 minutes
• TVMaze ID: 84420
• IMDb ID: tt34622123
• TVDB ID: 438634

Cast and credited roles

• Lee Jung Ha — Kim Eui Gyum
• Kim Do Wan — Kang Yoon Gi
• Im Hyun Tae — Choi Hong Il
• Im Sung Kyun — Kim Seung-Joon
• Yuk Jun Seo — Lee Geol-Jae
• Yoo Hee Je — Choi Ki-Soo

Seasons in the TVmaze catalogue

• Season 1: premiered 2025-05-30; final listed air date 2025-06-13; episode order: 8.

Source and licence

Adapted from ONE: High School Heroes on TVmaze. The synopsis is reproduced as plain text; catalogue facts, cast and season records are selected and reformatted. This adapted text is available under CC BY-SA 4.0, following the TVmaze API licence. Network and web-channel credits identify the service listed in this source; they do not establish current streaming availability.