Raised in a family of dumpling artisans thriving in the shopping district in front of the station, she had a tomboyish, fiercely competitive personality from an early age. Firmly believing in protecting the weak and never tolerating bullies, she gained popularity even among boys, earning the nickname "Boss Girl Yuri." Nakkii, her childhood friend from the same shopping district, decided to take a trip together to a hot spring inn their families often visited before graduation—but this journey would become the turning point that drastically changes both of their destinies.