| Kimi to Hanabi to Yakusoku to | |
 Light novel volume cover | |
| 君と花火と約束と | |
|---|---|
| Novel series | |
| Written by | Kaori Mado |
| Published by | Note |
| Original run | August 4, 2025 –October 27, 2025 |
| Light novel | |
| Written by | Kaori Mado |
| Illustrated by | Akamoku |
| Published by | Shogakukan |
| Imprint | Gagaga Bunko |
| Published | December 18, 2025 |
| Volumes | 1 |
| Anime film | |
| Directed by | Kei Suzuki |
| Produced by | Michihiko Umezawa |
| Written by | Kōhei Mori |
| Studio |
|
| Released | July 17, 2026 (2026-07-17) |
Kimi to Hanabi to Yakusoku to (君と花火と約束と;lit. 'You, Fireworks, and Our Promise') is a Japaneselight 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.[1][2] It was later acquired byShogakukan, who released it in print under itsGagaga Bunko imprint on December 18 of the same year.[3] Ananime film adaptation produced byShin-Ei Animation and animated bySynergySP andThe Answer Studio is scheduled to premiere in Japan in July 2026.
Makoto Natsume, a first-year junior high school student inChōfu, 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 toNagaoka, Niigata, to attend the city's famed fireworks festival, suspecting that the painting is linked to it.
| No. | Release date | ISBN |
|---|---|---|
| 1 | December 18, 2025[3] | 978-4-09-453260-9 |
Ananime film adaptation was announced on January 25, 2026. Produced and planned byShin-Ei Animation, the film is animated bySynergySP andThe Answer Studio and directed by Kei Suzuki, from a screenplay written by Kōhei Mori and characters designed by Yūji Watanabe. It is set to be released in Japan byShochiku and Shin-Ei Animation on July 17, 2026.[4]
Writing forBookstand, 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.[5] The novel was included in a list byReal Sound of the best upcoming light novels to be released in December 2025.[6]