After more than 20 years, my childhood friend Sae has returned to this town. Our hearts race as we reunite after so long. Back then, we used to bathe together and even sleep in the same bed. Now that we're both over 40, the urge to have sex again is overwhelming. Sae is divorced and back living at her parents' house, having quit her job and now with plenty of free time. She decides to spend time with me, her childhood friend, and another mutual friend from those days. We were in the same class from first to sixth grade, sharing countless memories like bathing and sleeping together. As adults, the desire between Sae and us men in our 40s grows intense. This long-awaited reunion promises passionate, serious seduction—the first real intimacy of her adult life.