"You, Fireworks, and Our Promise" Anime Film Opens July 17! Shori Sato & Nanoka Hara Star

Big news for the 2026 summer animated film season! The adaptation of Madoka Mado's light novel, "You, Fireworks, and Our Promise," has officially been scheduled for a nationwide release in Japan on July 17. This film marks the first leading voice role in an animated feature for Shori Sato of timelesz, who will star alongside rising actress Nanoka Hara. The announcement immediately sparked widespread discussion on social media.

Simultaneously, the official channels released a "super teaser visual" and a "super teaser video," both brimming with summer atmosphere, kicking off the promotional campaign for this youthful miracle tale.

Shori Sato's Voice Acting Debut! The Stellar Voice Cast Revealed

The casting is arguably the biggest highlight. Shori Sato will voice Makoto Natsume, a high school boy who is socially awkward yet kind-hearted, marking his first leading voice role in an animated film. In the teaser video, his nuanced vocal performance capturing the youthful flutterings of the heart has generated high expectations.

The heroine, Aki Hayama, will be voiced by Nanoka Hara, known for her role in "Suzume." Aki Hayama holds an old fireworks painting, which is the key to unraveling the mystery, and will lead the two on a journey that transcends time.

A Summer Spectacle Crafted by a Top-Tier Production Team

To perfectly adapt this youthful fantasy novel to the big screen, the production has assembled an elite team from the industry:

• Director: Kei Suzuki, renowned for his delicate control of emotional atmosphere
• Screenplay: Kohei Mori
• Character Design: Yuji Watanabe
• Animation Production: Planned by Shinei Animation, co-produced by SynergySP and The Answer Studio