Recently starting to live alone in Tokyo, Takuto is troubled by the nightly moans coming from his new neighbors, a couple living next door. One day, he reunites with his childhood friend Alisa for a casual drinking session at home, leading to an unexpected turn of events. As the neighbors' sounds echo through the walls, a sweet and intimate atmosphere begins to grow between them, filled with tension and erotic energy. Unable to suppress their hidden feelings any longer, their emotions overflow naturally. In the moment their desires intersect, a new love story begins to unfold.