A phone call upends the blissful days of newlywed life with her beloved husband. Her father-in-law, who lives alone after losing his mother-in-law, tripped down the stairs and sustained serious injuries. After breaking his leg and even injuring his arm, her father-in-law is in no condition to live alone. Yuki has to stay overnight and take care of him in place of her busy husband until he recovers. She feeds him, washes his body, and even takes care of his private parts, but... it's all a trap set by her father-in-law's lewd desires...