In the small town of Asaba, two powerful families are known to be famous enemies: Mizuno's family patriarch is one of Asaba's mayoral candidates, while Chayama-en is a successful tea company, one that Mizuno’s family claims to be polluting the city's water.

While, to the public eye, it seems that the daughters of the two families have their futures figured out, Mizuno finds the atmosphere of living in a tight-knit town intolerable, planning to leave once she graduates from high school. In contrast, Chayama is content with her life and is prepared to take over the family business regardless of their controversy. Although the two girls are not allowed to interact and have opposing worldviews, they find the gap between them close and start dating in secret.

As the bond between Mizuno and Chayama grows stronger, outside forces threaten to destroy it. Chayama faces bullying from the daughters of her parents' employees; Mizuno deals with the increasing pressure of keeping up with appearances to help her father's campaign. Despite their troubles, the girls find comfort in each other's presence and become determined to find a way to stay together, no matter how hard their small town tries to tear them apart.