Ichika Hoshimiya is an extremely beautiful and serious female teacher. Because her homeroom student was absent from school, Ichika Hoshimiya was asked by the homeroom teacher to go talk to the family. She had been there once, but because of the stench coming from the garbage that filled the house, Ichika Hoshimiya decided to return.

But this time the student's father came to open the door, so Ichika Hoshimiya could not return. Inside the house, the stench became even more intense, forcing Ichika Hoshimiya to go to the bathroom to vomit. Taking this opportunity, he put aphrodisiacs in her water bottle. Ichika Hoshimiya did not suspect anything and drank the aphrodisiacs. Ichika Hoshimiya's mind gradually became blank, and her body was extremely sensitive, making it easy for him to take over her body.

From then on, Ichika Hoshimiya stayed here to live with him. He continuously gave her all kinds of aphrodisiacs to make her lose consciousness. And when his son found out, Ichika Hoshimiya officially became a sex toy for both father and son...