"Shizuka" works as a live-in caregiver for the Shiratori family. "Sumire," who is bisexual and harbors feelings for her, calls Shizuka into her bedroom one day and aggressively pushes for a physical relationship. However, Shizuka flees the scene in distress. Meanwhile, Sumire plans to place her father-in-law, who requires care, into a facility, hoping to create more time alone with Shizuka. As the boundaries between work and personal life blur, the relationship between the two women gradually deepens.