Yuu Suzuno is the younger brother of Happy Rain member Ito Suzuno. Lived with his mother Hokkaido until his parents reconciled and the whole family got back together. He is a fan of prism star Renjouji Bell. At the end of the Pretty Rhythm Rainbow Live he is seen performing with his family and Ito's boyfriend Mihama Kouji.
In King of Prism the clearheaded boy decides to enroll because he is worried about Edel Rose. He is a tsundere who feigns coolness but yields to his older sister.