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You, Fireworks, and Our Promise

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You, Fireworks, and Our Promise
Image
Light novel volume cover
君と花火と約束と
(Kimi to Hanabi to Yakusoku to)
Genre
Novel series
Written byKaori Mado
Published byNote
Original runAugust 4, 2025 – October 27, 2025
Light novel
Written byKaori Mado
Illustrated byAkamoku
Published byShogakukan
ImprintGagaga Bunko
PublishedDecember 18, 2025
Volumes1
Manga
Kimi to Hanabi to Yakusoku to @comic
Written byKaori Mado
Illustrated byYomiya Ririura
Published byShogakukan
ImprintSunday Webry Comics
MagazineSunday Webry
Original runMarch 26, 2026 – present
Volumes1
Anime film
Directed byKei Suzuki
Produced byMichihiko Umezawa
Written byKōhei Mori
Music byArisa Okehazama
Studio
ReleasedJuly 17, 2026 (2026-07-17)
Runtime96 minutes
icon Anime and manga portal

You, Fireworks, and Our Promise (Japanese: 君と花火と約束と, Hepburn: Kimi to Hanabi to Yakusoku to) is a Japanese light novel written by Kaori Mado and illustrated by Akamoku. The novel was originally serialized online on the Note website from August 4 to October 27, 2025.[2][3] It was later acquired by Shogakukan, who released it in print under its Gagaga Bunko imprint on December 18 of the same year.[4] A manga adaptation illustrated by Yomiya Ririura began serialization on Shogakukan's Sunday Webry service in March 2026 and has been compiled into a single tankōbon volume as of July 2026. An anime film adaptation produced by Shin-Ei Animation and animated by SynergySP and The Answer Studio premiered in Japan in July 2026.

Plot

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Makoto Natsume, a first-year junior high school student in Chōfu, Tokyo, is suddenly confessed to by a fellow freshman named Aki Hayama. Aki told him that her grandmother once told her about meeting a boy named Makoto Natsume in the future. Having never met before, Makoto is convinced that Aki is mistaken. When Aki brings up a painting of a fireworks, Makoto decides to help her find the Makoto Natsume she is looking for. The following year, the two head to Nagaoka, Niigata, to attend the city's famed fireworks festival, suspecting that the painting is linked to it.

Characters

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Makoto Natsume (夏目誠, Natsume Makoto)
Voiced by: Shori Sato (Timelesz)[1]
Aki Hayama (葉山煌, Hayama Aki)
Voiced by: Nanoka Hara[1]
Haru (ハル)
Voiced by: Rie Takahashi[5]
Yukari Natsume (夏目由香利, Natsume Yukari)
Voiced by: Natsuko Yokosawa[5]

Media

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Light novel

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No. Release date ISBN
1December 18, 2025[4]978-4-09-453260-9

Manga

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A manga adaptation illustrated by Yomiya Ririura began serialization on Shogakukan's Sunday Webry service on March 26, 2026.[6][7] The first tankōbon volume was released on July 10, 2026.[8]

No. Release date ISBN
1July 10, 2026[8]978-4-09-854689-3

Anime film

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An anime film adaptation was announced on January 25, 2026. Produced and planned by Shin-Ei Animation, the film is animated by SynergySP and The Answer Studio and directed by Kei Suzuki, from a screenplay written by Kōhei Mori, characters designed by Yūji Watanabe, and music composed by Arisa Okehazama.[1] It was released in Japan by Shochiku and Shin-Ei Animation on July 17, 2026. The theme song is "Kienai Hanabi" (消えない花火; 'Eternal Fireworks') performed by Timelesz.[5]

Reception

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Writing for Bookstand, Yayoi Saginomiya praised the novel, stating that while the novel had a light-hearted feel typical of light novels, it also leaves the reader deep feelings, given the connection between the Nagaoka Fireworks Festival and World War II.[9] The novel was included in a list by Real Sound of the best upcoming light novels to be released in December 2025.[10]

The anime film adaptation received poor reviews. A two-star review in The Japan Times described it as a low-rent version of Your Name.[11]

References

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  1. 1 2 3 4 5 Loo, Egan (January 24, 2026). "Kimi to Hanabi to Yakusoku to Romance Novel Gets Anime Film on July 17". Anime News Network. Retrieved January 25, 2026.
  2. ↑ 小説「君と花火と約束と。」_1. Note (in Japanese). August 4, 2025. Retrieved January 30, 2026.
  3. ↑ Kaori Mado [@madokaori_mado] (October 26, 2025). #長岡花火 #小説 #君花 #最終話 (Tweet) (in Japanese). Retrieved January 30, 2026 – via X (formerly Twitter).
  4. 1 2 君と花火と約束と (in Japanese). Shogakukan. Retrieved January 24, 2026.
  5. 1 2 3 Tai, Anita (May 18, 2026). "'You, Fireworks, and Our Promise' Anime Film's Trailer Unveils More Cast & Staff, Theme Song". Anime News Network. Retrieved May 19, 2026.
  6. ↑ Yomiya Ririura [@yomiya_ririura] (March 26, 2026). 【新連載告知！】本日から、サンデーうぇぶりで連載開始いたしました『君と花火と約束と @comic』 原作:真戸 香 キャラクター原案:あかもく こちらのコミカライズで作画を担当しております！よろしくお願いいたします！ (Tweet) (in Japanese). Retrieved March 27, 2026 – via X (formerly Twitter).
  7. ↑ Tai, Anita (March 30, 2026). "Kimi to Hanabi to Yakusoku to Novels Gets Manga Adaptation". Anime News Network. Retrieved March 31, 2026.
  8. 1 2 君と花火と約束と@comic 1 (in Japanese). Shogakukan. Retrieved June 6, 2026.
  9. ↑ Saginomiya, Yayoi (January 15, 2026). 長岡まつり大花火大会がつなぐ運命 圧巻の読後感が味わえる青春ストーリー. Bookstand (in Japanese). Retrieved January 24, 2026.
  10. ↑ このラノ1位『汝、暗君を愛せよ』、小説版『フリーレン』、「とある」シリーズ最新刊……年末に見過ごせないラノベ話題作. Real Sound (in Japanese). December 4, 2025. Retrieved January 24, 2026.
  11. ↑ Schley, Matt (July 26, 2026). "Time-travel anime 'You, Fireworks, and Our Promise' is serviceable but lacks spark". The Japan Times. Retrieved July 26, 2026.
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