'Yuki Yuna is a Hero 4' Panel Spinoff Manga Becomes A Movie, Already In Progress

The manga follows the titular Yūna Yūki and the other Hero Club members' everyday lives. Kotamaru also launched the "Washio Sumi wa Yūsha de Aru Gaiden: Yūsha Kōshinkyoku" (Washio Sumi is a Hero Spinoff: Hero March) four-panel manga in the December issue of Dengeki G's Magazine on October 28.