Riho is an elite tutor hired for her stupid son. - Riho, who was told by her son that she is in agony and cannot study, uses hand jobs and blow jobs to improve her grades. - Riho, who was fucked by her father and discovered his secret masochistic temperament, is rewarded with dog play and cum in her mouth. - Riho, who has discovered her talent for using pussies rather than teaching studies, begins a pussy lesson for her son and his friend...