Tamade Chiyu

 is a returnee who attends Celosia Girls' Academy, which is an international school. She goes by the moniker CHU² (read as CHUCHU) and is the leader and DJ for the band RAISE A SUILEN. She dreams of changing the world with the strongest music, and sees Yukina as her rival; however, Yukina doesn't share this sentiment.

She is 14 years old but due to her excellent grades, she is currently a 10th grader or a first year high school student. Chiyu is both very professional and confident of her band and ideas, and though she tends to be arrogant sometimes, she's not rude.

Appearance
Chiyu is a girl of average height. She has sharp sky blue eyes with curly, burnt orange hair reaching her hips, and a tall single ahoge.

She is normally seen wearing her school uniform, which consists of a white buttoned shirt with a red and white striped tie, a dark blue school blazer with long sleeves, plaid miniskirt and ankle high socks and brown leather shoes. She also wears cat-eared headphones.

Trivia

 * As a result of her studying in an international school, she often talks in English or adds English words to her sentences.
 * She is a music producer who uses DTM (Desktop Music) to compose music.
 * She scouted PAREO as a keyboardist.
 * Her birthday is the same date as when RAISE A SUILEN's 3rd official live, Brave New World, was held.