Toko is a woman who lives her life casually while working part-time at a telephone club. One day, he meets Yokkun, the guitarist and vocalist of a popular band about to make its major debut. Yokkun falls in love with the charm of Toko who doesn't stretch out, but when it comes time to talk about something important, Toko avoids it by humming. In the depths, there is Toko who is elusive. Heart broken in childhood. A heart that can't trust people. A coming-of-age ensemble drama depicting Yokkun and his friends who are toyed with by Toko, who has a small darkness.