The probability of meeting someone is one in 240,000, and the probability of becoming close friends is probably astronomical. Miruyi is often bullied and suffers from selective mutism. She adopts a silkworm as an emotional support. The transfer student Tsumugi comes and becomes Miruyi's miracle. The mysterious Tsumugi is hard to figure out, and has insect attributes. The 25-year-old director Yuka Edaka made a dark allegorical version of "Flowers and Alice" (2004). There are many movies about bullying, but they can't describe this kind of pain. Tear off the coat of youth, youth is just exploitation and betrayal, and growth teaches us to surround our fragile hearts tightly.