"Eiji"  

「エイジ」

The younger brother of Keijiro Akagi, who was a renowned boxer, is Eiji. Despite being a high school dropout and not skilled at playing rock guitar, Eiji has become known as one of the worst musicians in the world. Although his father and older sibling are both accomplished fighters, he dislikes boxing. However, when he encounters the younger sister of the local champion, he begins to develop an interest in this sport.