Blessed with a beautiful voice, Nino only sings for one reason: to be found. Nino finds herself looking for two boys who left her without reason, Momo and Yuzu. By chance, all three of them end up in the same high school, and Nino discovers that her singing isn't in vain. As they rediscover their bonds, the group realizes that time changes many things, and sometimes certain things can't be repaired.