Kimi to Hanabi to Yakusoku to light-novel (also known as You, Fireworks, and the Promise or simply Kimi-Hana) is heading to the big screen with an exciting anime film adaptation premiering in Japan on July 17, 2026.
The project brings together fresh talent for its leads: Shōri Satō from the idol group timelesz voices the protagonist Makoto Natsume in his voice acting debut, while acclaimed actress Nanoka Hara (known for Suzume, the live-action Oshi no Ko, and Mieruko-chan) lends her voice to the heroine Aki Hayama. This romantic tale, originally a light novel by Kaori Mado, promises to capture the emotional journey of two young students connected by a mysterious promise and a fireworks painting in a heartfelt, visually stunning adaptation.
The anime unveiled a new key visual:
Staff of the anime includes:
• Director: Akira Suzuki
• ︀︀Script: Kohei Mori
• Script draft: Madoka Hosoya
• Script draft: ︀︀michi
• Character designer: Yuji Watanabe
• Animation production: SynergySP, The Answer Studio
• Planning production: Shin-Ei Animation
Kimi to Hanabi to Yakusoku to is a heartfelt Japanese light novel penned by Kaori Mado, with captivating illustrations by Akamoku. Released by Shogakukan under its Gagaga Bunko imprint on December 18, 2025, the story has already sparked excitement with an upcoming anime film adaptation. Produced by Shin-Ei Animation and animated by SynergySP alongside The Answer Studio, the movie is slated to hit Japanese theaters in July 2026.
The narrative follows Makoto Natsume, a first-year junior high student living in Chōfu, Tokyo, whose ordinary life takes an unexpected turn when classmate Aki Hayama suddenly confesses her feelings. She explains that her grandmother once spoke of encountering a boy named Makoto Natsume in the future. Bewildered, since the two had never crossed paths before, Makoto initially dismisses it as a mix-up. But when Aki mentions a mysterious painting depicting fireworks, curiosity draws him in—he agrees to help her track down the “real” Makoto from her grandmother’s tale. The next year, the pair journeys to Nagaoka, Niigata, drawn by the city’s legendary fireworks festival, convinced the artwork holds the key to unraveling the promise that connects past, present, and future.
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 anime film adaptation premieres in Japan on July 17, 2026.){kind=link}