Tsuma Netori Kan Bijutsu Kyoushi no Baai

Yurina Suzukaze is a married woman who works as a substitute art teacher at that university. Sakakura, the man who has been romantically interested in Yurina for a while, and Yasuno, devise a plan to sexually subjugate her. Later, Sakakura offers Yurina some tea, and when she drinks it, she starts feeling unwell and faints. When Yurina wakes up, she notices that she is tied completely naked to a chair. Sakakura reveals to her that she was kidnapped and will be sexually trained for two consecutive weeks.