Tooru is a manga artist who specializes in erotic comics. He is Masamune's childhood friend, both of them having shared the same dream of pursuing soccer as a career when they were young. He lives in the same apartment block as his teammates. Due to his past, when he was betrayed by friends he trusted, he has low self-confidence and often worries that Masamune might abandon him. He is also the most sensitive to others, being the first one to notice changes in the member's moods.