The timid old man Yamashita Kazuo has found himself caught up in a ring of marital arts matches where corporations wager massive profits on martial arts fights between hired fighters. They are called the Kengan Matches!! Kazuo is given a mission to manage their company's fighter: a young man who is violence embodied named Tokita Ohma. What will grow between them across the age gap? Friendship? Submission? Or something else...?? It's a passionate drama where a 56-year-old can still grow... The fierce fights between hardened gladiators is about to begin!!