Back in his third year at Yumenosaki Academy, he used to be the leader of the top unit, fine. Following Eichi's orders, he took part in something that would change everything once and forever. He never wanted to be a part of it, yet he had to.

After 1,5 years, Tsumugi was now a member of the new unit, Switch. You, as their personal producer, had to help them with their dreams. But you never expected to meet someone, who ruined your life after so long.