Nanaha takes care of her father-in-law to save him from a hard life. However, what her father-in-law wanted was a perverted care using the female body! For meals, she chews the food and kisses him, tasting it with her tongue, and for cleaning, she serves him with her whole body, making sure not to hurt him, using her lips. And she also takes responsibility for the hardened old man's thing, showing a brutal side... The young bride drowns in what she calls care but is actually an affair within the family!