Rin and Mr. haven't had sex in almost six months. Even when Rin tried to invite him, her husband always refused, saying he was tired or working. Rin had no choice but to hide in the kitchen to console herself. One afternoon, Rin lost her balance while cleaning the air conditioner and fell. Her son, who had just graduated from college, came to take care of Rin. Remembering the lewd behavior he saw Rin commit last night, the son pounces on...