Character Relationship Map: NANA

Characters

• Nana Osaki (played by Romi Park) — protagonist

  Main protagonist and vocalist of Black Stones. Moves to Tokyo, forms a deep bond with roommate Nana K. Navigates a turbulent romantic relationship with Ren, faces jealousy and substance abuse struggle...

• Nana "Hachi" Komatsu (played by KAORI) — protagonist

  Main protagonist who moves to Tokyo and becomes roommates with Nana O. Experiences romantic entanglements with an unfaithful ex-boyfriend, Nobu, and Takumi. After discovering a pregnancy, she marries...

• Shinichi "Shin" Okazaki (played by Akira Ishida) — supporting

  Bassist of the band Black Stones. His arrest shortly before the band's first professional tour forces a major shift in the group's trajectory, prompting Nana O. to pursue a solo career.

• Sachiko Kawamura (played by Megumi Kojima) — supporting
• Kyosuke Takakura (voice) (played by Junichi Suwabe) — supporting
• Misako Uehara (voice) (played by Mika Kanai) — minor
• Ren Honjo (voice) (played by Hidenobu Kiuchi) — minor
• Yasushi Takagi (voice) (played by Yoshihisa Kawahara) — minor
• Junko Saotome (voice) (played by Takako Honda) — minor
• Naoki Fujieda (voice) (played by Anri Katsu) — minor
• Ginpei (voice) (played by Fumihiko Tachiki) — minor
• Nobuo Terashima (played by Tomokazu Seki) — supporting

  Guitarist for Black Stones. Nana K. develops romantic feelings for him, adding complexity to her personal life and friendship dynamics.

• Shoji Endo (played by Hiroki Takahashi) — supporting
• Reira Serizawa (played by Olivia Lufkin) — supporting
• Takumi Ichinose (played by Toshiyuki Morikawa) — supporting

  Bassist of the popular band Trapnest. Becomes romantically involved with Nana K. following her breakup, eventually marrying her after she discovers she is pregnant.

Canonical Relationships

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

• Nana Osaki → Ren Honjo (voice) (Complicated Lovers) — A volatile and intense romance rooted in shared musical history, marked by passion, toxicity, and unresolved emotional dependency.

  "Former bandmates who reunite in Tokyo, navigate unresolved past feelings, move in together, and Ren proposes despite his chaotic lifestyle and entang...

• Nana "Hachi" Komatsu → Nobuo Terashima (Mutual Confidants) — A grounded and empathetic connection that blossoms into romance, tested by uncertainty and competing life choices.

  "Blast bandmates who develop deep mutual understanding, Nobuo confesses his love, Hachi chooses him over Takumi, but pregnancy confusion and external...

• Nana "Hachi" Komatsu → Shoji Endo (Former Sweethearts) — A once-stable romance that fractures under the weight of infidelity and diverging life paths, leaving lingering emotional scars.

  "College sweethearts who move to Tokyo together, suffer a breakup due to Shoji's affair with Sachiko, and eventually cross paths again years later at...

• Ren Honjo (voice) → Reira Serizawa (Entangled Partners) — A turbulent dynamic blending professional ambition with unresolved romantic history, creating emotional instability for all involved.

  "Trapnest members with a complex past, Ren's proposal to Nana occurs while still tied to Reira, leading to Reira's loneliness and secret meetings with...

• Nana "Hachi" Komatsu → Takumi Ichinose (Transactional Lovers) — A relationship driven by convenience and emotional vulnerability, marked by rapid escalation and underlying emotional dissonance.

  "Meet after Hachi loses her job, engage in a hotel encounter, quickly become engaged, and marry despite Hachi's lingering feelings for Nobu and pregna...

• Yasushi Takagi (voice) → Nana Osaki (Devoted Supporter) — A one-sided romantic devotion masked as professional mentorship, characterized by self-sacrifice and quiet admiration.

  "Blast's manager who confesses his love to Nana, prioritizes the band's debut over his law apprenticeship, and provides unwavering professional and em...

• Shinichi "Shin" Okazaki → Reira Serizawa (Secret Affair) — A clandestine romance born from mutual loneliness and proximity, hidden beneath the surface of professional band dynamics.

  "Exchange a lighter, send emails, Reira gives Shin money, and they sneak out for alone time while Ren is preoccupied with Nana."

• Shoji Endo → Sachiko Kawamura (Affair Partners) — A forbidden connection that emerges from professional mentorship, ultimately destroying Shoji's primary relationship and causing significant fallout.

  "Shoji trains Sachiko, their relationship grows dangerously close, leading to an affair that is discovered and confronted by Nana and Hachi."

Story Dynamics

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

• Nana Osaki → Nana "Hachi" Komatsu (Inseparable Roommates) — A profound bond forged from shared dreams and loneliness, evolving from strangers to soulmates who profoundly shape each other's lives.

  "They meet on a train to Tokyo, agree to share Apartment 707, and navigate major life events together until Hachi moves out for marriage, culminating...

• Yasushi Takagi (voice) → Ren Honjo (voice) (Rivals) — Blast bassist and Trapnest vocalist locked in a professional and personal rivalry.

  "Episode 44 shows Yasu directly confronting Ren about his drug use and how he treats Nana."

• Nana Osaki → Misako Uehara (voice) (Loyal Bandmate) — A steadfast professional and personal alliance, providing crucial stability and encouragement to Nana and the band during their rise.

  "Blast's bassist who remains fiercely loyal to Nana, visits during wilderness camp, and actively supports the band's debut preparations."

• Nobuo Terashima → Shinichi "Shin" Okazaki (Bandmates) — A professional alliance forged through shared musical goals, marked by mutual respect and occasional rivalry within the band structure.

  "Both members of Blast, practice together, attend Trapnest after parties, and navigate the pressures of the music industry as peers."

• Nana "Hachi" Komatsu → Kyosuke Takakura (voice) (Close Friend) — Hachi's friend who offers supportive perspective on her romantic struggles.

  "Episodes 3, 29 depict Kyousuke traveling to Tokyo with Junko and participating in discussions about Hachi's love life."

• Nana "Hachi" Komatsu → Junko Saotome (voice) (Close Friend) — Hachi's loyal friend who provides grounding advice during romantic confusion.

  "Episodes 3, 29 show Junko moving to Tokyo with Kyousuke and later analyzing Hachi's relationship with Nobu."

• Junko Saotome (voice) → Kyosuke Takakura (voice) (Hometown Friends) — A grounded friendship that offers emotional support and perspective, serving as a reliable backdrop to the protagonists' turbulent lives.

  "Friends from the hometown who move to Tokyo with Nana, support Hachi through her relationship struggles, and provide a stable social anchor."

Story Analysis

A dual-protagonist story exploring love, ambition, and identity in modern Tokyo through intersecting romantic and musical journeys.

Plot Progression

1. Tokyo Arrival & Settlement — The two Nanas meet on a train to Tokyo and agree to share Apartment 707. They navigate early adjustments, Hachi finds work, and Nana begins forming her band Blast with hometown friends.
2. Romantic Fractures & Band Growth — Shoji's affair with Sachiko is revealed, causing a major confrontation and Hachi's temporary job loss. Meanwhile, Blast gains momentum, and Nana reunites with Ren at a Trapnest concert.
3. Career Breakthroughs & Confessions — Blast secures a record deal and prepares for their debut. Nobuo confesses his love to Hachi, while Yasushi reveals his feelings for Nana. Romantic tensions peak as choices must be made.
4. Crisis, Pregnancy & Engagement — Hachi discovers her pregnancy and faces uncertainty about the father. She initially chooses Nobu, but Takumi's sudden proposal and engagement announcement cause emotional upheaval and fracture her bon...
5. Debut, Scandal & Future Reunion — Blast releases their debut single amid a press scandal involving Nana and Ren. Hachi moves out, and years later, the group reunites at Room 707 for the fireworks festival, reflecting on their divergen...