He is a second year at Yamakita University. He is obsessed with power and manliness and refuses to do stuffs that he considers unmanly such as having a phone. He wished to become stronger and got the ability to transform into a strong monster. which has a really hard body that can even stop normal bullets. He is not interested in collecting the coins and just wants to fight other collectors. He studied all kinds of martial arts to become stronger but had to make his own martial art form as normal martial arts are designed with human bodies in mind and his body isn't really suitable for using normal martial arts. After being defeated by Shuichi Kagaya and Claire Aoki, he becomes an ally of theirs.