Character Relationship Map: As One

Characters

• Hyun Jung-hwa (played by Ha Ji-won) — protagonist

  Hyun Jung-hwa is a South Korean table tennis player preparing for the 41st World Championships while caring for her hospitalized father. Under intense pressure to win gold, she initially clashes with...

• Yu Sun-bok (played by Han Ye-ri) — supporting

  Yu Sun-bok is a North Korean player who shares a room with Li Bun-hui and suffers severely from competition nerves. During the women's team trials, her poor performance leads her to step aside in favo...

• Choi Kyung-sub (played by Lee Jong-suk) — supporting

  Choi Kyung-sub is a young North Korean player whose hotheaded behavior intensifies the quarrels and fights between the Northern and Southern members in Chiba. His confrontational presence reflects the...

• Choi Yeon-jung (played by Choi Yoon-young) — supporting

  Choi Yeon-jung is a member of the South Korean side who shares a room with Hyun Jung-hwa in Chiba. She has romantic feelings for Choi Kyung-sub, a Northern player, creating a personal connection that...

Canonical Relationships

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

• Choi Yeon-jung → Choi Kyung-sub (One-Sided Romantic Interest) — Choi Yeon-jung has an expressed romantic interest in Choi Kyung-sub.

  The plot explicitly says that Choi Yeon-jung fancies Choi Kyung-sub.

Story Dynamics

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

• Hyun Jung-hwa → Choi Kyung-sub (Conflict Cross-Team Opponent) — They are connected through the early hostility between the two Korean camps.

  The plot describes quarrels and fights between the suspicious Northern and Southern sides, with Choi Kyung-sub intensifying the friction. Hyun Jung-hw...

• Hyun Jung-hwa → Choi Yeon-jung (Social Roommate) — Their shared room creates a close everyday connection within the team.

  The plot states that Hyun Jung-hwa shares a room with fellow player Choi Yeon-jung in Chiba.

• Hyun Jung-hwa → Yu Sun-bok (Alliance Teammate) — Their team relationship is shaped by sacrifice and shared competitive responsibility.

  Both compete for the unified Korean women's team. During the trials, Yu Sun-bok steps down in favor of Hyun Jung-hwa for the good of the team.

Story Analysis

A divided Korean team gradually discovers that shared discipline and cooperation can challenge political separation and historical distrust.

Plot Progression

1. Pressure Before Unity — Hyun Jung-hwa suffers a painful defeat in Beijing and returns to Busan under intense pressure. Her training is complicated by responsibility for her hospitalized father.
2. The Unification Experiment — Following a North-South summit, the two Korean teams are merged for the world championships. The new flag and unfamiliar leadership create a politically significant but unstable team.
3. Clashing Under One Flag — In Chiba, Northern and Southern players quarrel because of mutual suspicion. Room arrangements, romantic interest, and team trials expose the personal costs of the divided environment.
4. Forty-Six Days Together — After a difficult selection process, the players train together for 46 days. Repeated practice gradually transforms political distrust into team cohesion.
5. The Flag Under Threat — The final against China approaches just as political changes threaten to dissolve the unified team. The players must preserve their cooperation under the greatest pressure of the tournament.