One: High School Heroes is a 2025 South Korean action drama directed by Lee Seong-tae, based on the webtoon ONE by Lee Eun-Jae. In Episode 3, the tension intensifies: Ui-Gyeom wrestles with his father’s harsh expectations while navigating a dangerous school hierarchy. After a rooftop fight with Ji-hyuk, he earns the respect of Seung-joon, who abandons the seniors’ gang life. Seung-sik, a senior gang leader, challenges Ui-Gyeom outside school. Meanwhile, Ui-Gyeom’s parents take him to his grandfather’s birthday celebration, exposing deeper family conflicts. Back at school, Yoon-ki advises Ui-Gyeom to avoid further fights to let his body heal. When Seung-sik humiliates Ui-Gyeom in class, Ui-Gyeom doesn’t retaliate — showing restraint, which surprises Yoon-ki. Later, Seung-sik gives him an ultimatum: fight or join him. The episode ends in a tense showdown in the school’s band practice room Series Info:
Title: One: High School Heroes / ONE: 하이스쿨 히어로즈
Genre: Action, Coming-of-age, School Drama
Cast: Lee Jung-ha (Ui-Gyeom), Kim Do-wan (Kang Yoon-Ki) Network: Wavve
Production Companies: Covenant Pictures, Very Good Studio
Episodes: 8 (Season 1)
Language: Korean
Themes: Bullying, vigilante justice, family abuse, self-empowerment
Watch Episode 3 in Full HD with English subtitles — only on DramaRelic.
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