Aya (22, part-time worker at a restaurant) struggles with her feelings about heterosexual relationships, but finds her emotions stirred when her close female friend confesses romantic feelings for her. Seeking clarity, she's invited on a day-trip to a hot spring by her friend Rikako Kudo, who offers healing and pleasure. Rikako takes Aya's concerns seriously, suggesting that her confusion may stem from simply not knowing about lesbian love and sex, and proposes they practice together. Starting with kisses, Aya gradually shifts from being passive to taking control, carefully licking her partner's pussy. Roles reverse as Aya reaches climax with her abdominal muscles tensing, then they rub their vulvas together, achieving simultaneous orgasms. They climax again together, sandwiching a vibrator against their clits. The two share a warm, intimate experience that heals both their hearts and bodies.