Character Relationship Map: Orange

Characters

• Naho Takamiya (played by Tao Tsuchiya) — protagonist

  A 16-year-old high school student who receives letters from her future self warning about Kakeru's fate. She actively intervenes to change events, confesses her feelings, and leads the group effort to...

• Kakeru Naruse (played by Kento Yamazaki) — supporting

  A troubled transfer student who becomes the central focus of Naho's letters. He struggles with deep trauma from his mother's suicide and initially plans to end his life, but is ultimately rescued thro...

• Hiroto Suwa (played by Ryo Ryusei) — supporting

  A loyal friend who also receives letters from his future self. He collaborates with Naho to alter the timeline, coordinates the group's efforts to save Kakeru, and is revealed to be Naho's future husb...

• Saku Hagita (played by Dori Sakurada) — supporting

  A supportive friend in Naho's circle who helps coordinate birthday gifts and signs up for the relay race to boost Kakeru's morale and help him regain his will to live.

• Azusa Murasaka (played by Kurumi Shimizu) — supporting

  A close friend of Naho who joins the group effort to rewrite the timeline. She actively participates in supporting Kakeru, including signing up for the relay race to help him regain his spirit.

• Takako Chino (played by Hirona Yamazaki) — supporting

  One of Naho's close friends who joins the mission to save Kakeru after learning about the time-travel letters. She actively participates in organizing birthday gifts and supporting Kakeru during the r...

• Rio Ueda (played by Erina Mano) — supporting

  An upperclassman who was previously dating Kakeru. Naho's intervention regarding this relationship ultimately leads to their breakup, an event noted in the future letters.

Canonical Relationships

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

• Kakeru Naruse → Rio Ueda (Romantic Former Girlfriend) — Kakeru's relationship with Rio is an important early complication.

  The plot identifies Rio Ueda as Kakeru's upperclassman girlfriend, and Naho's intervention eventually contributes to their breakup.

• Hiroto Suwa → Naho Takamiya (Romantic Future Husband) — Hiroto becomes Naho's husband in the future timeline.

  In 2025, Naho is described as married to Hiroto and having a baby with him.

• Naho Takamiya → Kakeru Naruse (Romantic Interest) — Naho develops deep romantic feelings for Kakeru while trying to save him.

  Naho changes her actions to protect Kakeru, objects to his relationship with Rio Ueda, confesses her feelings, and Kakeru kisses her cheek after the r...

Story Dynamics

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

• Hiroto Suwa → Takako Chino (Alliance Rescue Teammates) — They cooperate as members of the group trying to save Kakeru.

  Both Hiroto and Chino learn about the letters and participate in preparing Kakeru's birthday gifts, supporting the relay race, and searching for him o...

• Naho Takamiya → Azusa Murasaka (Alliance Teammate) — Azusa joins Naho's collective intervention on Kakeru's behalf.

  Naho informs Azusa about the letters and recruits her for the birthday gifts and relay race support.

• Naho Takamiya → Saku Hagita (Alliance Teammate) — Hagita works with Naho to change the future.

  Naho tells Hagita about the letters and asks him to help with Kakeru's birthday and the relay race.

• Naho Takamiya → Takako Chino (Alliance Teammate) — Chino becomes part of Naho's coordinated rescue team.

  Naho informs Chino about the letters and asks her to help prepare Kakeru's birthday gifts and support him in the relay race.

• Kakeru Naruse → Azusa Murasaka (Social Close Friend) — Azusa helps maintain the friendship network protecting Kakeru.

  Azusa befriends Kakeru, joins the birthday effort, and participates in the relay race support group.

• Kakeru Naruse → Saku Hagita (Social Close Friend) — Hagita supports Kakeru through practical group actions.

  Hagita befriends Kakeru, helps coordinate birthday gifts, and signs up for the relay race to encourage him.

• Kakeru Naruse → Takako Chino (Social Close Friend) — Takako actively supports Kakeru's recovery and survival.

  Takako befriends Kakeru and later helps organize his birthday gifts and supports him during the relay race.

• Kakeru Naruse → Hiroto Suwa (Social Close Friend) — Hiroto becomes one of Kakeru's most committed rescuers.

  Hiroto befriends Kakeru, receives future instructions to help him, gives him requested flowers, and joins the search when Kakeru disappears.

• Naho Takamiya → Rio Ueda (Conflict Romantic Rivalry) — Naho's intervention places her at odds with Rio's relationship with Kakeru.

  Naho objects to Kakeru pursuing a relationship with Rio, and the relationship ultimately ends.

Story Analysis

A girl and her friends use messages from the future to help Kakeru survive grief and choose life.

Plot Progression

1. Letters Against Fate — Naho receives letters from her future self and sees their prediction come true when Kakeru transfers into her class. The warnings convince her to change her behavior around him.
2. A Future Memorial — Naho tries to protect Kakeru through everyday choices involving soccer, Rio, and the fireworks. In 2025, the friends discover that Kakeru's death was suicide.
3. The Parallel Promise — Kakeru reveals the trauma surrounding his mother's suicide. Hiroto receives matching letters and proposes creating a parallel future, bringing the entire friend group into the rescue plan.
4. Choosing To Live — The friends support Kakeru through the relay race, helping him regain his spirit. Naho's confession exposes the seriousness of his plan, while his mother's recorded message reshapes his understanding...
5. Two Possible Sunsets — The friends search for Kakeru on New Year's Eve and save him from his suicide attempt. The ending contrasts the 2025 memorial timeline with a parallel 2015 timeline in which Kakeru survives.