Rokudenashi Blues - Yonekura Industrial

Yonekura Industrial

Shimabukuro

One of Maeda's longer running adversaries. They met when Shimabukuro crashed his car into Maeda's, inadvertently saving his, and his friends lives from an oncoming train. Mistaken identity later led the two to become enemies. A long-running joke in the manga is that Maeda and Shimabukuro always meet by helping the other out, only to fight when they realize who it is they are dealing with. He is a strong fighter, coming 2nd place in the Japanese High School Judo Finals. While he should be in his final year at Yonekura, he had to repeat 2nd year due to poor grades. Him and Maeda seem to be of equal strength, though Shimabukuro knocked Maeda out with a Judo slam during their only serious fight. The two later resolved the conflict in hospital, both suffering from chicken pox. While often at each others throats, the other characters often wonder whether or not they're best friends.

Yahiro

Sakamato's underclassmen who is the complete opposite of him. Yahiro often fights with Sakamoto, especially over his rigid sense of honour. He is an extremely competent fighter, having fought and beaten multiple opponents, and having even beaten Sakamoto once in a fight. He is extremely disrespectful and proud, usually considering himself above everyone else, and even though he treats Sakamoto the same way, it is obvious the two are close friends.