Character Relationship Map: Suspect X

Characters

• Manabu Yukawa (played by Masaharu Fukuyama) — protagonist

  Brilliant physicist turned amateur detective, solves complex crimes using scientific principles

• Kaoru Utsumi (played by Ko Shibasaki) — protagonist

  Dedicated police detective and Yukawa's close friend, collaborates on criminal investigations

• Misato Hanaoka (played by Miho Kanazawa) — supporting

  Yukawa's ex-wife, maintains a complex but supportive relationship with him

• Tetsuya Ishigami (played by Shinichi Tsutsumi) — supporting

  University colleague of Yukawa, provides academic perspective on scientific cases

Key Relationships

• Tetsuya Ishigami → Misato Hanaoka (Alliance Neighbor Ally)
• Kaoru Utsumi → Manabu Yukawa (Social Close Friend)
• Tetsuya Ishigami → Manabu Yukawa (Professional Former Classmate)

Story Analysis

A mathematical genius creates an impossible alibi for his neighbor, clashing with a physicist detective in a battle of intellects.

Plot Progression

1. The Fatal Mistake
2. The Investigation Begins
3. Intellectual Duel
4. Tragic Revelation