Sasha hasn’t set foot outside of her room since the incident. For the last eight months, she has become a hikikomori – a term that describes young people who, like her, live in seclusion. As her 16th birthday approaches, even the thought of joining her family for a simple celebration feels overwhelming. With the support of her hikikomori friends, a compassionate psychologist, and her cat, Sasha tries to reconnect with the buried part of herself, the one that longs to enjoy her youth, and truly experience life.