Character Relationship Map: A Werewolf Boy

Characters

• Wolf-Boy / Chul-soo (played by Song Joong-ki) — protagonist

  Chul-soo is a feral young man discovered in Sun-yi's yard and adopted by her mother. Unable to speak or read, he is taught human behavior by Sun-yi and becomes fiercely loyal to her. He falls in love...

• Young Sun-yi / Eun-ju (played by Park Bo-young) — protagonist

  Young Sun-yi is a seventeen-year-old girl who moves from Seoul to a remote valley with her mother and sister while recovering from lung problems. Isolated and initially irritated by Chul-soo, she trai...

• Ji-tae (played by Yoo Yeon-seok) — supporting

  Ji-tae is the arrogant son of the family's business partner and their landlord, placing him in a position of power over Sun-yi's family. He lusts after Sun-yi, envies Chul-soo's strength and loyalty,...

• Sun-yi (played by Lee Young-ran) — supporting

  Sun-yi is the elderly woman who returns from the United States after receiving a call about selling her old family home. She recalls her relationship with Chul-soo, finds him still waiting in the shed...

• Sun-yi's Mother (played by Jang Young-nam) — supporting

  Sun-yi's Mother is a widowed woman who moves with her daughters from Seoul to the countryside during Sun-yi's convalescence. Despite the boy's animal-like behavior and unknown origins, she compassiona...

• Sun-ja (played by Kim Hyang-gi) — supporting

  Sun-ja is Sun-yi's sister and a member of the family that leaves Seoul for the remote valley. She accompanies her widowed mother and Sun-yi during Sun-yi's recovery, sharing the household affected by...

Canonical Relationships

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

• Sun-yi's Mother → Young Sun-yi / Eun-ju (mother)
• Ji-tae → Sun-yi (Power Landlord) — Ji-tae holds economic power over Sun-yi's family.

  The Kim family lives in genteel poverty at the mercy of their arrogant landlord, Ji-tae.

• Wolf-Boy / Chul-soo → Sun-yi (Romantic Attachment) — Their love becomes the emotional center of the story.

  As Sun-yi opens her heart to Chul-soo, he falls in love with her, the only person who has shown him affection.

• Sun-yi → Sun-ja (Family Sisters) — Sun-yi and Sun-ja are sisters who share the family's difficult relocation.

  The plot states that Sun-yi moved to the remote valley with her widowed mother and her sister Sun-ja.

Story Dynamics

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

• Wolf-Boy / Chul-soo → Ji-tae (Conflict Rival) — Chul-soo and Ji-tae become rivals over Sun-yi and social power.

  Ji-tae envies Chul-soo because of his loyalty and superhuman strength, while Chul-soo's relationship with Sun-yi threatens Ji-tae's desire for her.

Story Analysis

A lonely girl teaches a feral boy humanity, forms an enduring bond with him, and confronts the pain of separation across decades.

Plot Progression

1. Return to the Forgotten Valley — Sun-yi returns to South Korea after receiving news about the old family property. The journey awakens memories of her 1965 relocation and isolated life.
2. The Boy in the Yard — Sun-yi discovers a feral boy who cannot speak or read. He joins the household after his strange condition and vulnerability become clear.
3. Learning to Be Human — Sun-yi trains Chul-soo in human behavior and gradually forms a close bond with him. His loyalty and strength also provoke Ji-tae's envy.
4. Fear Turns the Valley — Ji-tae's interference intensifies the conflict surrounding Sun-yi and Chul-soo. Chul-soo's instincts emerge, causing the villagers to turn against him.
5. A Promise Across Time — In the present, Sun-yi discovers that Chul-soo has remained young and waited for her. Their reunion is brief, but she chooses not to sell the property.