A young and beautiful son-in-law's father who always looked at his daughter-in-law with sexual intent. One day, the son and his wife had a strained relationship due to suspicions of the husband's infidelity. Seeing this, the father-in-law took the opportunity to set up a night● plan in the couple's bedroom. The thrill of whether or not the husband sleeping next door would find out, combined with the feeling of revenge for the infidelity, overwhelmed her with unprecedented pleasure！！
