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Second-year student Naho Takamiya and her friends use letters from their regretful selves ten years in the future to try to save Kakeru Naruse. The letters do not erase the future that sent them; they create a new parallel branch in which Kakeru may survive.

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青春 / 恋愛 / 友情 / SF / ドラマ
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orange — Timeline12 events

Sender timeline — first day of the second school yearMajorOfficialSource confirmed

Kakeru's mother dies on his transfer day, and he blames himself

Kakeru Naruse moves to Matsumoto with his mother and transfers on the first day of the second school year. While he returns late after joining his new friends, his mother dies by suicide, and he privately blames his broken promise for her death.

Vol.TVアニメ第12話 LETTER12Ch. Official TV episode 12 synopsis and its flashback; this is a shared starting point in both the sender and rescue timelines.

Next event
成瀬翔高宮菜穂須和弘人転校母の死罪悪感送信元世界現代高校2年並行世界A
Sender timeline — winter of the second school yearMajorOfficialSource confirmed

Kakeru ends his life under the appearance of an accident

Burdened by guilt over his mother and increasingly isolated, Kakeru cannot ask for help after a New Year's Eve conflict with Naho. The day after Valentine's Day, he moves into the path of a vehicle and dies in what appears to be an accident.

Vol.TVアニメ第13話/映画 orange -未来- LAST LETTER/映画本編Ch. Official TV episode 13 and movie story, combining the death with the later discovery that it was suicide.

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成瀬翔高宮菜穂自死事故喪失送信元世界現代高校2年並行世界A
Sender timeline — spring, ten years laterMajorOfficialSource confirmed

At twenty-six, the friends send their regrets to the past

At twenty-six, Suwa, Naho, Takako, Hagita, and Azusa visit Mount Kobo without Kakeru. Suwa, now married to Naho and raising their child, also carries regret, and the friends send letters recording events and their true feelings to their sixteen-year-old selves.

Vol.映画 orange -未来- 映画本編・26歳の春Ch. Official movie story; the letters are sent to create another possibility rather than erase the senders' lives.

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須和弘人高宮菜穂茅野貴子萩田朔村坂あずさ成瀬翔手紙後悔10年後送信元世界現代26歳並行世界A
Rescue timeline — spring of the second school yearMajorOfficialSource confirmed

Naho receives a letter from ten years in the future

On the first day of her second school year, Naho receives a letter from herself ten years ahead describing future events and regrets. When Kakeru transfers exactly as predicted, she begins trusting the letter and changing her actions to keep him alive.

Vol.TVアニメ第1話 LETTER01Ch. Official TV episode 1 synopsis. Parallel World B is this timeline's label for the rescue branch distinct from the sender timeline.

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高宮菜穂成瀬翔未来からの手紙転校分岐救済世界現代高校2年並行世界B
Rescue timeline — spring of the second school yearMajorEstimatedSource confirmed

Naho's actions begin changing Kakeru's school life from the sender timeline

Naho overcomes the regret described in the letter and makes lunch for Kakeru. Differences emerge when he joins the soccer club, unlike in the sender timeline, showing her that events are branching toward another future.

Vol.TVアニメ第2〜3話 LETTER02〜03Ch. Official TV episode 2–3 synopses; spring is estimated from continuity with episode 1.

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高宮菜穂成瀬翔須和弘人弁当サッカー部未来改変救済世界現代高校2年並行世界B
Rescue timeline — school festivalMajorOfficialSource confirmed

Naho and Kakeru watch the school-festival fireworks together

After Kakeru's relationship with Ueda leaves Naho unable to speak with him, the letter pushes her to reconnect. At the school festival she overcomes interference and reaches him, realizing the private fireworks moment that never occurred in the sender timeline.

Vol.TVアニメ第4〜6話 LETTER06Ch. Official TV episode 4–6 synopses.

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高宮菜穂成瀬翔上田莉緒文化祭花火恋愛未来改変現代高校2年文化祭並行世界B
Both timelines — Kakeru's birthdayMajorOfficialSource confirmed

In the rescue timeline, all six friends celebrate Kakeru's birthday

In the sender timeline, the friends at twenty-six gather at Kakeru's grandmother's home to honor a promise to him. In the rescue timeline, their teenage selves learn what he wants and celebrate with Kakeru alive among them.

Vol.TVアニメ第7話 LETTER07Ch. Official TV episode 7 synopsis, which explicitly contrasts the same birthday in the two timelines.

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成瀬翔高宮菜穂須和弘人茅野貴子萩田朔村坂あずさ誕生日並行世界友情追悼現代高校2年26歳並行世界A並行世界B
Rescue timeline — before the sports festivalMajorEstimatedSource confirmed

All five friends share their future letters and support Kakeru

Suwa and the others reveal to Naho that they too received letters from their future selves. Rather than reproduce every instruction mechanically, the five resolve to judge the Kakeru before them and save him together.

Vol.TVアニメ第8〜9話/映画 orange -未来- LETTER08〜09Ch. Official TV episode 8–9 synopses and the movie story; placement before the sports festival is estimated from episode order.

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高宮菜穂須和弘人茅野貴子萩田朔村坂あずさ成瀬翔手紙の共有友情共同支援救済世界現代高校2年体育祭前並行世界B
Rescue timeline — sports festivalMajorOfficialSource confirmed

Kakeru tells his friends about his guilt over his mother

When Kakeru injures his foot at the sports festival, Suwa and the others refuse to leave him alone and encourage him to speak honestly. He reveals his guilt over breaking his promise to his mother, and the five accept his pain before completing the relay with him.

Vol.TVアニメ第10話 LETTER10Ch. Official TV episode 10 synopsis.

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成瀬翔須和弘人高宮菜穂茅野貴子萩田朔村坂あずさ体育祭告白罪悪感支援現代高校2年体育祭並行世界B
Rescue timeline — New Year's EveMajorOfficialSource confirmed

The friends keep Kakeru from becoming isolated after his conflict with Naho

On the New Year's Eve that became a decisive regret in the sender timeline, Naho and Kakeru clash again. Knowing the future, Naho refuses to abandon their relationship, while Suwa and the others watch over Kakeru and work to prevent the same isolation from continuing.

Vol.TVアニメ第11話 LETTER11Ch. Official TV episode 11 synopsis.

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高宮菜穂成瀬翔須和弘人大晦日衝突後悔見守り現代高校2年並行世界B
Rescue timeline — the day that was supposed to be Kakeru's lastMajorOfficialSource confirmed

The five save Kakeru from the crash and hear his wish to live

Naho conveys her feelings to Kakeru on Valentine's Day, and the five prepare for the final day named in their letters. They search for him, prevent the road collision, and share the message left on his mother's phone. Kakeru tells them he wants to live.

Vol.TVアニメ第13話 LAST LETTERCh. Official TV episode 13 synopsis and the rescue sequence in the finale.

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成瀬翔高宮菜穂須和弘人茅野貴子萩田朔村坂あずさ救出自死予防バレンタイン生きる意思現代高校2年並行世界B
Rescue timeline — future after the branchMajorInterpretationSource confirmed

Kakeru builds a family with Naho in the world where he lives

The rescue world created through the letters does not overwrite the sender world; the two futures continue in parallel. In the branch where Kakeru survives, he marries Naho and they have a child, while Suwa carries forward his choice to support them.

Vol.映画 orange -未来- 映画本編・新しい未来Ch. The movie's official description of the untold aftermath and new future, plus its rescue-timeline epilogue. Because positioning the causal relationship between the two worlds involves interpretation, dateReliability is marked interpretation.

成瀬翔高宮菜穂須和弘人並行世界結婚家族新しい未来現代未来並行世界A並行世界B

Related timelines

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