Sena is the student council president of Hatsuboshi Gakuen. She is known as "the school's number one idol" and is admired by many students. The granddaughter of the student council principal, she grew up recieving an early idol education from a young age. She has a special skill of "seeing through the talent of idols", and falls in love with Kotone at first sight, but for some reason, the latter keeps her distance from her