A heartwarming story about animated emotions that help Yumi rediscover the taste for life. At the center of the story is a simple office worker named Yumi, who has been living alone for many years after being abandoned by her boyfriend. While Yumi may seem like an ordinary girl from the outside, she feels empty inside. Part of Yumi's brain that is responsible for experiencing euphoria and love has stopped working, but her rational thinking, prudence, and anxiety are in full swing.