Miyuri (Moeka Hoshi) has lost the ability to speak due to the bullying she experiences at school. Miyuri prays for the day someone comes to her aid and confides in her only friend –– a silkworm she’s named Tsumugi. The ringleader of the bullies throws Miyuri’s silkworm away, driving Miyuri into deeper despair. The very next day, a new transfer student joins Miyuri’s class. Her name is Tsumugi...