Honoka is a full-time housewife who also cares for her elderly father-in-law. One day, her husband gets into an accident, and she has to take care of both her father-in-law and her husband until his injuries heal. Honoka cares for her beloved husband and devotes herself to providing sexual services, but when her father-in-law sees this, he thinks, "What if I get hurt too..." and hits him on the leg! Using this as an excuse, the father-in-law shows Honoka his erect penis and forces him into a relationship. Having stayed away from sex since her husband's accident, Honoka unwillingly finds herself aroused by the old man's clingy kisses and caresses. Despite feeling guilty, Honoka's frustrated body begins to crave intense sex with her father-in-law...