Character Relationship Map: White Night

Characters

• Yoo Mi-ho / Lee Ji-ah (played by Son Ye-jin) — protagonist

  Originally known as Lee Ji-ah, she changes her name to Yoo Mi-ho after moving in with her aunt and cultivates a flower garden. As an adult, she is tied to a rich fiancé while remaining secretly close...

• Han Dong-soo (played by Han Suk-kyu) — protagonist

  Han Dong-soo investigated the unresolved case fourteen years earlier, but it ruined his career and resulted in the death of his son. When Jo Min-woo uncovers a connection between the old case and a re...

• Kim Yo-han (played by Go Soo) — supporting

  Kim Yo-han is the pawnbroker's son and has matured into a murderer who removes people standing in Yoo Mi-ho's way. He functions as her shadow, demanding nothing in return while remaining secretly clos...

• Lee Si-yeong (played by Lee Min-jung) — supporting

  Lee Si-yeong is an employee of Yoo Mi-ho's rich fiancé. She becomes involved when Han Dong-soo and Jo Min-woo reopen the investigation into the connected cases, assisting them as they pursue the hidde...

• Aunt (played by Ye Su-jeong) — minor

  Aunt is the family member with whom Lee Ji-ah moves after the deaths surrounding her childhood. Her home becomes the setting where the girl lives under changed circumstances and grows a flower garden....

Canonical Relationships

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

• Han Dong-soo → Lee Si-yeong (Professional Investigation Associates) — Lee Si-yeong participates in the renewed investigation.

  Dong-soo reinvestigates the case together with Min-woo and Lee Si-yeong.

• Yoo Mi-ho / Lee Ji-ah → Aunt (Family Niece And Aunt) — Aunt provides Mi-ho with a family home after her identity changes.

  After changing her name, Yoo Mi-ho / Lee Ji-ah moves in with her aunt and grows a flower garden there.

Story Dynamics

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

• Han Dong-soo → Yoo Mi-ho / Lee Ji-ah (Narrative Case Investigator) — Dong-soo's investigation gradually approaches Mi-ho's concealed past.

  The reinvestigation reconstructs the earlier case involving Ji-ah and later exposes the hidden history connected to Mi-ho.

• Han Dong-soo → Kim Yo-han (Conflict Investigator And Suspect) — Dong-soo's renewed investigation threatens Yo-han's hidden crimes.

  Dong-soo returns to the unsolved case while Yo-han is revealed to have matured into a murderer who eliminates obstacles to Mi-ho.

• Yoo Mi-ho / Lee Ji-ah → Kim Yo-han (Social Secret Companions) — They maintain an unusually close hidden bond across their separate lives.

  The plot states that Yo-han exists as Mi-ho's shadow and that they remain as close as ever while living separate lives.

Story Analysis

An old unsolved case exposes a destructive bond between two survivors whose identities and crimes remain intertwined.

Plot Progression

1. Deaths Across Fourteen Years — A recent death is placed beside an older unsolved case. The earlier deaths and the changed identity of Ji-ah establish the film's hidden history.
2. The Gardened Disguise — Ji-ah becomes Mi-ho and builds a new life with her aunt. The flower garden contrasts with the violence surrounding her past.
3. The Case Reopens — Min-woo links the two cases and recruits Dong-soo, whose career and family were damaged by the original investigation. Lee Si-yeong joins the renewed inquiry.
4. The Shadow's Crimes — Yo-han is exposed as Mi-ho's hidden protector and as a murderer who removes obstacles. Mi-ho's knowledge and encouragement reveal her complicity.
5. Protection Through Death — The buried abuse and family murders are revealed, connecting Yo-han and Ji-ah to the old case. Yo-han dies to protect Ji-ah.