Keito has an overbearing manner, and he enjoys long conversations. Calm and composed, he acts as the vice-president of the Student Council, and he carries out his job with great efficiency. Supporting the student council president, Eichi Tenshouin, as his right hand man, Keito has a strong influence in the academy.
Born and raised in a Buddhist temple, Keito is childhood friends with Eichi, and they often enjoy drinking tea together. He was friends with third year Rei Sakuma before they entered the academy. He’s fair-minded and will never find fault with those who follow the rules, but violators will receive a long sermon from him. He has very sharp ears.