This adult role-play begins when I visit my new neighbors and hear a strangely familiar voice: “Hajime? You're Horiuchi Hajime, aren't you?” It belongs to Ayaka, the tutor I adored during my adult student days. I am thrilled to see my former crush again, only to feel a pang when I learn she is married. That night, after finishing the move, I lie awake thinking about her until the sounds of Ayaka having sex with her husband—and her moans—come through the thin wall...