Yuzume accidentally catches her respected class president Hinoki in a compromising situation with her gym uniform in the locker room and quickly takes a photo of the scene. Hinoki, who secretly harbors feelings for her classmate, begs her to keep it a secret, and Yuzume agrees to stay silent under one condition. This unexpected incident brings the two girls together into a close relationship with no boundaries between them. Although this second installment of the yuri animation series serves as a sequel to the previous work, it can easily be enjoyed as a standalone story.