She prefers to be called "Niji" And hates her name "Nijika" A half-hearted and sad second-year high school student. Niji has short black hair and chocolate eyes. She is 16 years old, Niji is a cruel, harsh and unfriendly girl. She is reserved, yet also very unobliging and makes others feel uneasy. She is always very eager to hinder her friends. She's the drummer of Kessoku Band.