My mother-in-law hits me very hard. Even asking my husband for advice is useless because it is mother's computer. My father-in-law doesn't know. I endure tears every day. One day when my husband went on a business trip, I witnessed my father-in-law masturbating, which sparked an idea. 'Alright! Let's get revenge on my father-in-law.' Although my mother-in-law has been nearby since that day, a dirty revenge plan began everywhere in the house.