Character Relationship Map: The Plan Man

Characters

• Han Jung-seok (played by Jung Jae-young) — protagonist

  A librarian whose daily life is meticulously planned, Han Jung-seok has obsessive–compulsive personality disorder and feels compelled to correct anything out of place. He falls for a convenience-store...

• Yoo So-jung (played by Han Ji-min) — protagonist

  A messy, spontaneous musician and free spirit, Yoo So-jung contrasts sharply with the orderly Han Jung-seok. After he mistakenly approaches her while trying to confess his feelings to the cashier, she...

• Psychiatrist (played by Kim Ji-young) — supporting

  The Psychiatrist leads the therapy group that Han Jung-seok joins. The sessions bring together people dealing with fears and habits, and challenge them to try unfamiliar activities instead of remainin...

• Lee Ji-won (played by Cha Ye-ryun) — supporting

  Lee Ji-won is the convenience-store cashier who attracts Han Jung-seok. Her attention to order and cleanliness initially appeals to him, but she wants a partner who does not share her obsession with n...

Canonical Relationships

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

• Yoo So-jung → Psychiatrist (Professional Group Therapy Facilitator And Participant) — The group sessions provide a setting in which So-jung and the other participants are challenged to act rather than remain caught in worry or planning.

  Yoo So-jung meets the Psychiatrist in the therapy group, whose sessions encourage participants to try unfamiliar activities.

• Han Jung-seok → Psychiatrist (Professional Therapist And Patient) — Through the Psychiatrist's group and his own therapy, Han encounters challenges to his rigid routines and experiments with changing his behavior.

  Han joins a therapy group led by the Psychiatrist and later begins therapy himself.

• Han Jung-seok → Lee Ji-won (Unrequited Romantic Interest) — Han initially directs his carefully planned romantic hopes toward Ji-won, but their conversation prompts him to reconsider where his feelings belong.

  Han spends 100 days observing Lee Ji-won and plans a confession. Later, Ji-won invites him to a movie and encourages him to invite the person he truly...

Story Dynamics

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

• Han Jung-seok → Yoo So-jung (Alliance Supportive Musical Partners) — Their growing connection encourages both to act outside their familiar habits: So-jung pursues music, while Han supports her and joins the band.

  Yoo So-jung helps Han pursue the woman he likes and asks him to join her for a singing audition. Han supports her decision to audition, and they form...

Story Analysis

A meticulous librarian is pushed toward unfamiliar choices as therapy, music, and changing relationships challenge his dependence on plans.

Plot Progression

1. Routines and a Planned Confession — Han organizes his days with meticulous records and observes Ji-won for 100 days before planning a confession. An interruption disrupts the plan and exposes his difficulty coping with the unexpected.
2. Learning to Act Together — Han joins the Psychiatrist's therapy group, where participants are challenged to try unfamiliar activities. Its arguments and experiments begin to draw Han away from a life governed by schedules.
3. Music Outside the Routine — So-jung decides to sing at an audition, and Han supports her by agreeing to form a band. Their uncomfortable rehearsals give both a chance to act beyond their old habits, while Han also begins therapy...
4. The Invitation and the Unresolved Step — Ji-won's movie invitation and their conversation lead Han to reconsider whom he truly wants to invite. When he cannot be reached, a search and a television crew converge with the group's recital, whos...