Kokoro Katayama, a high school student, struggles to form connections with her peers, causing her to use makeup to boost her self-assurance. Regrettably, her tactic fails to earn her respect and reinforces their perception of her timidness, making her feel more isolated.
One day, while picking up her younger brother, Shinta, Kokoro encounters Kuroki, a classmate with whom she isn't particularly close. They engage in a conversation that gradually strengthens their emotional connection.