Age: 18 Birthday: February 13 Blood Type: A Height: 157cm (volume 1), 158cm (current) Sorane Matsuyama is a member of ChamJam. Being an idol, Sorane's charisma lets her earn and charm her fans very naturally, initially earning her the 2nd place ranking. She was initially pretty apathetic towards idols as she was under the impression that idols were supposed to be super popular and stunning, and that she could never become an idol herself because it required lots of hard work. Despite her initial refusal, her aunt submitted her application to become an idol to ChamJam's management. (Source: OshiBudo Wiki)