Joo Jaekyung

Joo Jaekyung is a champion mixed-martial-arts fighter in Jinx.

Joo Jaekyung's role in Jinx

He hires physical therapist Kim Dan while preparing for matches and draws him into a controlling personal arrangement.

Joo Jaekyung's defining actions and relationships

His confidence, temper, and dependence on Dan create the central unequal relationship of the story.