WANZ-819 - Caught off guard: My father-in-law's dirty secret

Aoi was living a happy life with her husband, except for one thing: living with her lecherous father-in-law. Trying to avoid him while her husband is away, she works hard, but one day she collapses from exhaustion at home. Finding her vulnerable, her father-in-law takes advantage of the situation to satisfy his twisted desires. From that day on, whenever they are left alone, he never misses a chance to ravish his beautiful daughter-in-law.