Tsuyoshi Isobe  

Kyasharin, 磯辺強,

Kyasharin's hair is dyed brown and he appears as an emaciated bag of bones due to his addiction to vitamin supplements. In order to improve his strength, he joins a club but only for a brief period before returning to his reliance on the supplements. He gives up vitamins in favor of food and exercise, resulting in temporary improvement. However, Kyasharin's spasmatic cry "Okure-nisan" (a reference to Japanese comedian Mr. Okure) returns every time he takes the supplements. Additionally, Kyasharin was an ace on his baseball team during middle school.