Tamaki is 30 years old. Born in Nagasaki, he currently works at a Kioku in Akabane. In his third year at school, a junior girl confessed her feelings to him and he realized he was bisexual. He got the genital tattoos with the person he fell in love with when he first entered junior college; he was a butterfly and he was a flower. However, that relationship ended when he got married, and because of his tattoos, his relationships with men never lasted long. To relieve his frustration, he became obsessed with online shopping. His salary from Kioku was not enough to repay the debt, so Tamaki decided to interview for a high-paying part-time job.