The voice actress plays Kurokuma-sensei, a mysterious horror manga author who first appeared in episode 5 of the anime.
The anime Mono, an adaptation of the four-panel manga created by Afro, introduced this Saturday, May 11, a new character that has aroused great interest among fans: Kurokuma-sensei, a horror manga author with a unique personality and an enigmatic air. The voice is Hina Yōmiya, known for her delicate and expressive performances.
The announcement was made through the anime’s official account on X (formerly Twitter), along with illustrations of the character and a special comment from the cast. Kurokuma-sensei made her first appearance in episode 5, which aired on Saturday in Japan, marking the debut of this peculiar mangaka within the Mono universe.

Production and Cast Details
The Mono anime premiered on April 12 on Japanese channels such as Tokyo MX, Tochigi TV, Gunma TV, BS11 and AT-X, and is also available for streaming through ABEMA and the Anime Store. In addition, Crunchyroll streams the series internationally, with English dubbing available from May 3.
The production is in charge of the Soigne studio, under the direction of Ryota Aikei, who previously worked as an assistant on Jujutsu Kaisen. The character design is by Takuya Miyahara, while Yoko Yonaiyama (A Sign of Affection) is in charge of the script. The project is produced by Aniplex, and the singer performs the ending song titled “Weekend Roll”.
A manga that combines film and photography
Afro, also known as Yuru Camp△, launched the manga Mono in March 2017 within Houbunsha’s Manga Time Kirara Carat magazine. The story follows a group of high school girls who are part of the “cinephoto” club, a curious fusion between film and photography. The manga’s fourth compilation volume was published in April 2024.
With the arrival of Kurokuma-sensei and the participation of Hina Yōmiya, the anime continues to expand its cast with characters that bring new layers of humor and mystery to this relaxing yet creative student story.