Season guide

ONE: High School Heroes: Season 1

8 episodes Premiered May 30, 2025 Updated Jul 19, 2026

Season 1 Episodes

Episode Guide

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Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

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Mytharc (3): Crucial lore & season climaxes

Core (5): Character development & subplots

Side Quest (0): Standalone / filler

S1·E1 Mytharc

May 30, 2025 · 51 min

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

S1·E2 Core

May 30, 2025 · 46 min

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

S1·E3 Core

May 30, 2025 · 47 min

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

S1·E4 Core

May 30, 2025 · 41 min

“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.

S1·E5 Core