Yukiko

Yukiko is a co-singer of Mima’s in the pop group CHAM!, along with Rei, and stayed in the group for three years. When Mima has her last performance, Yukiko is the one who annouces Mima's departure because she was too upset to tell them about it. After Mima leaves CHAM!, the two singers become more popular and they end up on the best singing group charts.