This is the first time Fua has visited students' homes since becoming a teacher. When he arrived, Fua was stunned by the smell of garbage mixed with the smell of sweat. After knocking on the door, she is invited into the house by Yuta's father. Although he said he had cleaned it, the room was still extremely messy, and there was garbage everywhere. While discussing Yuta's situation, he approached Fua, raping her. Despite his efforts to resist, Fua's strength was no match for a healthy middle-aged man. After that time, Fua vowed never to come to this place again! But it seems that Yuta has been bullied lately. There was no other way, Fua had to go to the place he didn't want to go to the most, to discuss the student's situation. And this time, she was put into the water by him. Fua's body became extremely sensitive and continued to be raped by him. Not only that, she also found out that Yuta was not bullied at all, he and his father planned to make her fall into a trap. And then, Fua was continuously smeared by his own classmates and his father alternately in the filthy room...