Yoshida is a Public Safety Devil Hunter and a member of an organization that tasked him with keeping Denji safe. After joining Public Safety, he has kept tabs on Denji to prevent Denji from revealing his identity as Chainsaw Man. Yoshida has mid-length smooth black hair that only reaches the top of his neck, dark eyes, and a slim face. There is a beauty mark under his lips. He has eight piercings on his left ear, though usually, only six are visible below his hair.