"If you can endure just 24 hours, I'll make your 20 million yen debt disappear." An M-slave contract carried out to repay her husband's debt in one lump sum. A day where she is not treated as a person, but as an object. Throat bumping irrumatio, reverse-flow vomit juice, incontinence development, skewered ring, desperate creampie... The dignity of being a human being is lost through demonic training. The married woman Nanami has only one wish... that her husband returns to peace without knowing about this. The devotion of a married woman who continues to resist her own body, which is turning into a masochistic wife, believing in true love -.