Sana Kurata, a cheerful and outgoing child actress, is determined to help her classmates and resolve the problems in her school. However, her efforts are often met with resistance, particularly from her classmate Akito Hayama, who is bullied by her friend and has a gloomy nature. Despite their initial differences, Sana and Akito begin to form a bond, with Sana's attempts to change Akito captivating him, and Akito's gloomy nature compelling Sana to try and understand him. As they navigate their complicated relationships and the challenges of their everyday lives, Sana and Akito face many hardships that ultimately bring them closer to a deeper understanding and connection.