Zakusa is introduced as a laid back and somewhat absent-minded individual, he enjoys painting when not Cardfighting. It is later revealed that Zakusa was an aggressive and dangerous street punk before being arrested by Tomari, his aggressive side is usually kept in check by Tomari as well as Danji, but he still occasionally shows glimpses of his former self when angered such as when Masanori blew away his cards or when Wonder Hill seemed to be in danger of being demolished.