CMV-141 Hotaru Mori, a female teacher with big breasts who is trained by an elderly janitor to the limit of shame

A janitor who indulges in masturbation with SM magazine in one hand in a dull room. In the mind of a man, there is a bondage figure of a female teacher who was in love. One day, a man who was asked by a woman to repair an apartment finds a sex toy hidden in a small box in a drawer while she is away. A man who had a glimpse of a woman's weakness lost her reason, strangled her and tied her up, and ... An old man's nasty sexual play, a woman who is relentlessly blamed for her wet vagina and writhes in shame, is disciplined by masochist habits, and becomes a captive of a metamorphosis grandfather!