Gaku Ichikawa

Оригінальне ім’я: 市川学

Sora's friend, he is a year younger than him. He has a crush on Nagase Kai, manager of the Chemistry labs. He seems to be always happy, and he tries to help his friend any way he can. A sincere boy of pure feelings, Sora says that "He expresses four times more his feelings than the majority of the people". (Source: Wikipedia)