The one who moved next door to the middle-aged NEET man Miyazaki was Yu, a lewd married woman who looked like she would be great in bed! One day, she suddenly appears in the apartment's common area, and while cleaning, she teases him by showing off her small body, large breasts, and obscene pussy! Miyazaki is instantly defeated by the beautiful woman who approaches him intimately in a lewd outfit, and quickly becomes a convenient affair-only dick! Will the sperm run out first, or will the wife be satisfied first? The neighborhood affair relationship has just begun!