Yuki, a beautician, is heartbroken after being betrayed by her boyfriend of seven years. At an aesthetic salon she visits to treat herself, she meets Akari, a quiet aesthetician. Embraced in body and soul by Akari's warm and gentle treatment, Yuki drowns in the pleasure of girl-on-girl sex for the first time. On a rainy rooftop, they make a "one-year only" lovers' contract. The two weave a passionate love affair, featuring inverted strap-on sex during sweaty yoga and a double-headed dildo with whipped cream on a birthday. Eventually, the promised year passes, and Akari whispers a happy ending to the tearful Yuki.
