Character Relationship Map: I, the Executioner

Characters

• Seo Do-cheol (played by Hwang Jung-min) — protagonist

  Lead detective in Violent Crimes Unit, leads raids and investigates serial executions.

• Park Sun-woo (played by Jung Hae-in) — protagonist

  Detective in Do-cheol's unit, assists in major investigations and violent crime cases.

• Min Kang-hoon (played by Ahn Bo-hyun) — minor

  Individual connected to the gambling or criminal underworld, operates in shadows.

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Seo Do-cheol → Min Kang-hoon (Professional Arresting Officer)

  Police track Kang-hoon following a violent car chase, leading to his arrest despite his traumatic background and initial suspicion.

• Seo Do-cheol → Park Sun-woo (Professional Superior Officer)

  Seo leads the Violent Crimes Investigation Unit where rookie Park Sun-woo serves and assists in major raids and investigations.

Story Dynamics

Alliances, conflicts, and narrative interactions that evolve throughout the story.

• Park Sun-woo → Min Kang-hoon (Conflict Combatant)

  During a rooftop pursuit, Sun-woo attempts to kill Kang-hoon using an extreme jiu-jitsu chokehold before police intervention stops him.

Story Analysis

A detective hunts a vigilante executioner who happens to be his own rookie officer, exploring themes of justice, corruption, and moral compromise.

Plot Progression

1. The Vigilante's Rise — Viral videos expose a masked executioner targeting criminals who escaped justice, shifting public sympathy toward vigilantism. The police recognize a disturbing pattern and prepare to protect the next...
2. The Rookie's Shadow — Park Sun-woo secures the safe house but exhibits unsettling behavior as the target escapes and dies. A live-streamed confrontation at Namsan exposes media manipulation and deepens internal suspicion.
3. Fractured Trust — Min Kang-hoon emerges as a violent suspect, leading to a brutal rooftop chase. Forensic analysis reveals the killer's signature move matches Sun-woo's training, forcing Seo to question his own team.
4. The Hunter's Trap — Sun-woo kidnaps a YouTuber to force a moral dilemma, testing Seo's limits as a father and detective. A final brutal showdown ensues, followed by a restrained resolution and an ominous post-credits esc...