On the third anniversary of my father-in-law's death, my wife and I were returning to my wife's parents' home. - My mother-in-law, Momoko, was always beautiful, and her defenseless appearance always made my heart flutter. - That night, he can't stand it anymore and approaches his wife, but after she refuses, he is ordered to abstain while returning home. - I was planning to protect her reluctantly, but when my relatives suggested me to drink alcohol, my sexual desire was at its maximum and I went down. - When I woke up, my rational brakes broke and I jumped at Momoko's voluptuous ass right in front of me...