Natsu ga Owaru made The Animation

Hentai will tell you the story of the unfortunate Tachibana Yui-Chan, who fell into the clutches of a depraved teacher. Nothing foreshadowed trouble – a young student was having a great time with her boyfriend kou-Chan. She did not notice how the dissolute Sensei was already weaving his artful net around her. Yui quickly succumbed to persuasion and blackmail and became the teacher’s sex toy…