Sora's close friend. Initially, he holds a great desire to "mess around" with Mii-kun. However, he quickly comes to realize that Mii is so cute, that he cannot bring himself to tease the tiny mummy. He excels at studying and often helps Sora out. On his way from work, he finds an oni child which he initially throws away due to his fear of caring for him. Tazuki finally names him Conny. Above all, Tazuki is very protective of those he cares about, becoming incredibly frightening when his friends are threatened.