A son of a society person and a mother-in-law were living by two people in a certain private house. The father passed away a year ago, and the two men and women who were not bloody were alone under one roof. One day, my son saw his mother-in-law playing masturbation. It was the moment when I watched my mother as a woman. The son who thinks only to sex with the mother-in-law and has run to the terrible action.