Character Relationship Map: Soo

Characters

• Tae-soo (played by Ji Jin-hee) — protagonist

  Tae-soo is the central protagonist, a man searching for the truth behind his twin brother’s murder. He assumes the dead man’s identity, infiltrates the police, and pursues the criminal organization li...

• Mi-na (played by Kang Sung-yeon) — supporting

  Mi-na is closely connected to the murdered man whose identity Tae-soo assumes. She recognizes that the person living under that identity is not the companion she knew, confronts Tae-soo, and learns th...

• Gu Yang-Won (played by Moon Sung-keun) — supporting

  Gu Yang-Won controls the criminal network connected to Samkyeong Company and represents the main power Tae-soo seeks to destroy. His organization protects its business through violence, captures peopl...

Canonical Relationships

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

• Gu Yang-Won → Mi-na (Power Captive And Captor) — Gu Yang-Won exercises direct coercive power over Mi-na.

  The plot states that Gu Yang-Won captured Mi-na after her former accomplice abandoned her.

Story Dynamics

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

• Mi-na → Tae-soo (Conflict Identity Confrontation) — Mi-na challenges Tae-soo's deception and his pursuit of revenge.

  Mi-na realizes that the man using her former companion's identity is not the person she knew and confronts him.

• Tae-soo → Gu Yang-Won (Conflict Arch Enemy) — Tae-soo's revenge directly targets Gu Yang-Won's criminal network.

  Tae-soo pursues the organization controlled by Gu Yang-Won and continues toward the people responsible for his brother's murder.

Story Analysis

A grieving twin assumes a dead brother's identity to dismantle a criminal network, forcing revenge to collide with justice and personal loss.

Plot Progression

1. The Missing Twin's Trail — Tae-soo receives a lead after years of searching for his missing twin brother. The warning about death or departure makes the investigation uncertain before the murder is discovered.
2. A Dangerous Double Life — After learning that his brother was murdered, Tae-soo uses their similar appearance to enter the police station under his brother's identity. Suspicion grows as the police investigate another death an...
3. Secrets Behind Samkyeong — Tae-soo traces the case to Samkyeong and Gu Yang-Won's criminal network. Mi-na's account exposes the abandoned escape plan, her capture, and her betrayal for money.
4. Revenge Exposed — Mi-na discovers Tae-soo's true identity and confronts him. Their argument makes clear that Tae-soo seeks revenge rather than justice, while the police move to capture him alive.
5. The Criminal Network Falls — The pursuit brings the police, Tae-soo, and Gu Yang-Won's forces into violent conflict. The criminal operation collapses, but Tae-soo must face the consequences of revenge and unresolved grief.