Jouichirou lost his family due to the virus and became a member of STAND as a result. His hatred against the virus drives him to fight instinctively, seeking relief from his traumatic loss. Like Erkia, he prefers close-range combat over firefights. To facilitate this style of fighting, Jouichirou carries two Gunblades: one that shoots projectiles and another designed for close-range piercing. He also sometimes brings a sword into battle. Despite his resentment towards Serge due to his ease in mastering Variable Gear, Jouichirou is cautious and mistrustful of others due to the surprising developments he has witnessed lately.