BOKO-017 You can just get turned on by the squishy sounds coming from my room next door. Yayoi Mizuki and Kisaki Nana

In a certain apartment building, while living an ordinary life, one can hear a neighbor’s moans and suggestive sounds coming through the wall. After being warned about it, the two gradually grow closer. As their relationship becomes a lesbian one, they begin to excite each other by letting one another hear intimate sounds through the wall.