Trembling with excitement over a first-time experience, yet moving forward while cherishing their bond of friendship—the pure eroticism between close friends is the main appeal. Nodoka, who works at the same soba shop, and Honami, who struggles daily with childcare and work, grow closer when Nodoka plans a hot spring trip to help her friend relax. During their sightseeing, their feelings slowly awaken. Drinking at the inn brings them closer, and skinship in the bath leads to kissing. As Nodoka begins pleasuring Honami, Honami gradually becomes overwhelmed with pleasure. Back in their room, their passion continues—after Honami reaches orgasm, they switch roles. Nodoka writhes sensitively, climaxing repeatedly as her vagina is stimulated. The second round sees them mutually arousing each other, rubbing their vulvas together and taking turns building pleasure. Their naturally unfolding relationship enhances the erotic charm throughout.