Tsuma Netori Kan Bijutsu Kyoushi no Baai - 1

This is a story about the time when Makoto was still a student of the university, preparing for release. At this time, a popular art teacher Yurina Suzukaze, who was married to a man working now in Italy, replaced the teacher at the university, because her father, the owner of the gallery, was sick and needed to leave. The former classmate of Yurina, Sakakaku, is interested in her and, together with his accomplice, Yasuno is developing a plan to train and subordinate to her.

Having received a task from the school principal, Yurin is preparing to participate in the event to exchange experience and training. On the day of departure to the event, Sakkura is friendly offering her tea, but, having drunk it, Yurina begins to feel dizziness, vision is blurred, and she loses consciousness. When Yurina comes to his senses, she shudders from what she saw. After all, it is completely naked, tied to a chair, and in her mouth, BDSM gag-mare has, and drugs are introduced into the nipples and the clitoris that have already been excited. At this time, Sakakura says to Yurina, who is on the verge of fainting, so that she is attached. After all, from today, she has been imprisoned in this training room for half a month.
during the seemingly whole eternity to Yurin will be subjected to terrible sexual training.