
The top 0.01% of students control law and order at Jooshin High School, but a secretive transfer student chips a crack in their indomitable world.

Kang Ha enters Jooshin High and quickly ruffles some feathers. He soon attends a rowdy party — and partakes in a provocative game of truth or dare.

After Kang Ha's daring stunt at the party, he faces the vengeful Kim Ri-an at school. Later, at a retreat, Kang Ha and Jung Jae-i begin to get closer.

As Jae-i and Kang Ha present as a couple, a jealous Ri-an resorts to his own tactics. At the lavish Parent's Night, Yoon He-ra pulls a hostile stunt.

He-ra plants a suspicion about Jae-i in Kang Ha's head. As anonymous threats continue to plague Jae-i, she disappears from school.

After Kang Ha's confession, Jae-i is overwhelmed by the truth and decides to leave. At her farewell party, Ri-an makes an entrance — and a declaration.

Kang Ha plans a strike to make the school an even playing field. But Jae-i attempts to protect Ri-an from the blow, revealing a hidden secret to Kang Ha.

Kang Ha's crusade against the bullies wreaks havoc at the school. As a reckoning unfolds at Jooshin, will Kang Ha finally be able to fulfill his purpose?
Complete episode guide for Hierarchy with detailed information about every season and episode including air dates, summaries, ratings, and streaming availability in United States.
This episode guide is organized by seasons, making it easy to track your viewing progress or find specific episodes. Use the episode information to plan your binge-watching sessions or catch up on missed episodes.