Doll-Kara summary: Following imprisonment for tax evasion, Kazuyoshi Ishii, the creator of the K-1 martial arts association, emerges from Shizuoka Prison only to be fatally struck by a fast-moving truck and reborn as Kei Ichinose—a coma-bound high school student?! Two decades after the establishment of K-1, the MMA's trouble-shooter now dwells in a teenage girl's physique and confronts the karate he abandoned, as he embarks on a tale of grit and perseverance.