Yoshida is a tall muscular built man who usually keeps to himself and is quite quiet but not afraid to speak. He is more introverted than extroverted despite coming off as an extrovert as he usually forces himself onto people and even devils. He has a special contract with the Octopus devil that allows him to manifest octopus tentacles into reality however he chooses. He wears a white shirt with a black tie and black pants for his school-wear, he is a smart and intelligent young man.