Tattoos are the mark of a hero! Tattoos are life! Ever since being saved by a man with a back tattoo as a child, Jimmy has dedicated his life (and skin) to the ancient art of tattooing. Given his school full of delinquents, it’s no surprise that Tattoo Jimmy has become infamous for his skill at inking and brawling alike. So infamous that the biggest, baddest dudes around want to test their mettle against him...but Jimmy doesn’t take shit from anyone. He’s just got to stay in one piece long enough to meet his hero...even if it means bashing a few skulls along the way!
Jimmy (A.K.A. Katsuya Onishi) is a first year at Bara Cross High School's technical track. When he was young, he was saved by a legendary tattoo artist known as "Katsushin." Ever since then, he's become captivated by the art of tattooing, even going as far as to tattoo his body all by himself! His dream is to move to America and pursue his savior in order to study from under him and become the world's number one tattoo artist. Pinko, having set his sights on Jimmy and his friends, assigns Husky, a first-year student at Manji Botan High School, to destroy them. His backup? Two of Jimmy's friends from Bara High's technical track, the Dreadlock Brothers, Tohru and Hiroshi. Although it is to protect their cherished team, Tohru and Hiroshi are still finding it difficult to betray Jimmy. In their impasse, a certain man appears before them and tells them something that would give them a push in the right direction.