Lonely middle-aged bachelor Matsuzaka witnesses an unbelievable sight upon returning home from his security job! There's a stranger, a beautiful woman, cleaning the stairs... and she's not wearing a bra or panties. She seems to be 'Non,' a married woman who recently moved in next door. Her face is adorably healing with marshmallow-like F-cup breasts, and a clean pineapple butt peeks out... Matsuzaka's daily life changes drastically with the appearance of this abnormal neighbor!
