An elderly father-in-law lives with his son and daughter-in-law. His son's wife, who lovingly takes care of her, has been massaging her father-in-law's shoulders while doing housework. At first glance, it looks like a warm family, but in reality, what must be hidden? This father-in-law is holding a sword behind his back, and who knows that it will rust, as I have been sharpening it day and night aimed at my daughter-in-law's voluptuous body... 'Thank you, Honoka-san... I will massage you today...'