Character Relationship Map: Unforgettable

Characters

• Beom-sil (played by Doh Kyung-soo) — protagonist
• Soo-ok (played by Kim So-hyun) — supporting
• San-dol (played by Yeon Jun-seok) — supporting
• Gae-deok (played by David Lee) — supporting
• Su-ok's Father (played by Lee Dae-yeon) — supporting
• Hyung-joon (played by Park Yong-woo) — supporting
• Yong-su (played by Park Jeong-min) — supporting
• Gil-ja (played by Kim Ji-ho) — supporting
• Gae-deok's Mother (played by Hwang Seok-jeong) — supporting

Canonical Relationships

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

• Gae-deok's Mother → Gae-deok (mother)
• Soo-ok → Su-ok's Father (Family Daughter)

  Soo-ok believes that obtaining her father's consent is the obstacle to the operation.

• Beom-sil → Soo-ok (Romantic Interest)

  Beom-sil promises Soo-ok that he will carry her forever, while her possible disappearance becomes the emotional center of his search.

Story Dynamics

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

• Hyung-joon → Soo-ok (Narrative Message Interpreter)

  During the late-night radio program, Hyung-joon reads Soo-ok's message about missing an old friend and requests the song Dust in the Wind.

• Yong-su → Soo-ok (Conflict Opponent)

  The friends escape a confrontation involving Yong-su by pretending that Soo-ok has fainted and confusing him.

• Yong-su → Beom-sil (Conflict Opponent)

  Yong-su is involved in the confrontation that traps the friends, and the group escapes by confusing him.

• Soo-ok → Gil-ja (Social Friend)

  Soo-ok reunites with Gil-ja during the school vacation, and Gil-ja remains involved in the friends' shared summer.

• Soo-ok → Gae-deok (Social Friend)

  Soo-ok and Gae-deok reunite with the other friends and take part in their summer activities.

• Soo-ok → San-dol (Social Friend)

  Soo-ok reunites with San-dol during the vacation, and San-dol joins the group in its coastal plans and search.

• Beom-sil → Gil-ja (Social Friend)

  Gil-ja is named among the friends who reunite with Beom-sil and spend the summer together.

• Beom-sil → Gae-deok (Social Friend)

  Beom-sil reunites with Gae-deok during the 1991 vacation, and Gae-deok joins the group's adventures.

• Beom-sil → San-dol (Social Friend)

  Beom-sil reunites with San-dol during the school vacation, and San-dol participates in the group's coastal activities and search.

Story Analysis

A radio message revives a summer friendship whose joy is transformed by illness, fear of abandonment, and an unresolved disappearance.

Plot Progression

1. A Song Opens the Past
2. Carefree Days in Goheung
3. The Body Reveals Its Pain
4. A Choice No One Can Solve