The man owner is a car salesman. The sister of the fiancée just happened to buy a car, so she sold her a good car. Who knows that the sister of the fiancée is a coquettish woman. Some minor problems in the car called the male lead to repair. Even though the male lead had good stamina, he got on his sister’s bed under the stimulation of alcohol. Afterwards, the male lead regretted very much and felt sorry for his fiancee, but the elder sister got worse. For various reasons, forcing the male protagonist to be her tool for venting...