Live-Action 'Do not say mystery' Film's Teaser Highlights Hiroshima Setting

This blog reports on the newly released teaser trailer for the upcoming live-action film adaptation of Yumi Tamura's manga "Do not say mystery" (Mystery to Iu Nakare). The teaser highlights the setting of Hiroshima, where the story's "Hiroshima Arc" takes place. The film will feature popular Japanese actors such as Nanoka Hara, Kou Shibasaki, and Keita Machida. The blog also provides information on the manga's storyline, the author's other works, and the previous adaptations of the "Do not say mystery" manga.

Source: Twitter/@MangaMouraRE
By Saheel Khirodkar | Apr 20, 2023 | 2 Min Read follow icon Follow Us

The upcoming live-action film adaptation of Yumi Tamura’s Do not say mystery manga has released a new teaser trailer, revealing the Hiroshima Arc as the main focus of the film. The teaser introduces the protagonist, Totonō Kunō, exploring the scenic city of Hiroshima and meeting with members of the Kariatsumari family.

Cast and Characters

The film’s main cast includes Nanoka Hara as Shioji Kariatsumari, the potential inheritor of the Kariatsumari family’s fortune, and Kou Shibasaki as Yura Akamine, Shioji’s cousin and another potential inheritor. Keita Machida plays Rikinosuke Kariatsumari, a cousin of Shioji and Yura, while Riku Hagiwara takes on the role of Neo Hahakabe, another cousin and potential inheritor. Kōhei Matsushita plays Asaharu Rumazaka, Shioji’s first crush and the grandson of the Kariatsumari family’s lawyer. Masaki Suda reprises his role as Totonō Kunō, the protagonist of the manga and live-action series.


The “Hiroshima Arc” covers the manga’s second to fourth volumes and follows Totonō Kunō as he visits Hiroshima and gets involved in a fight for the Kariatsumari family’s inheritance. The story is about a mystery-solving college student, who is brought in for questioning by the police in connection to the murder of his classmate.

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Release Date and Production

The film is set to release on September 15, 2023, with Hiroaki Matsuyama, Tomoko Aizawa, and Ken Arai returning as director, scriptwriter, and music composer, respectively. Tamura’s Do not say mystery manga was serialized in Kodansha’s Monthly Flowers magazine and was awarded the 44th annual Manga Awards in April 2020. Seven Seas Entertainment has licensed the manga and will release it in omnibus volumes starting from May 2023. The manga was also nominated for the 13th Manga Taisho Awards in January 2020.

Final Thoughts

Fans of Yumi Tamura’s Do not say mystery manga and live-action series are eagerly anticipating the upcoming film adaptation, which promises to be a thrilling mystery drama set against the backdrop of Hiroshima. The teaser trailer gives audiences a glimpse into the stunning setting and intriguing characters that are sure to captivate viewers. With a talented cast and experienced production team, the film is sure to be a hit when it releases later this year.

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