Director Ishii, the world-renowned K-1 founder and master of Seidokaikan karate, finds himself navigating both the karate business and the supernatural!

Kei Ichinose lived a humble life with her father at their dojo until one day, he suddenly passed away, saddling her with his accrued debt and pushing her to take her own life. That’s when a mysterious pact with a cat had renowned and infamous K-1 organizer, Kazuyoshi Ishii, inhabit her body. He’s since used his talents to produce the JK-1 Grand Prix, a junior competition where girls can fight in their school uniforms! Now, the eclectic mix of fighters has been whittled down to the final two. Will it be either the plucky YouTuber or the delinquent boss who grasps victory? And will Ishii be able to make waves with the victor in the Japanese combat sports world?