The Yura family, a father and son. Kana's father, raising her alone, desperately wants her to be happy. "Because of my low education level, I haven't been able to get a top-tier job, causing my daughter a lot of financial hardship," he clings to his obsession with education. To spare his daughter this suffering, he insists she get into a good school and find a good job. He constantly tells her this. However, during a three-way interview, the teacher tells Kana that with her current grades, "it's impossible for her to get into her desired school." Upon learning this, Kana's father begs the teacher, "Is there any way?!" Then, the father sells his daughter Kana to a devil. "As long as you can get her accepted, my daughter will do whatever you want," he proposes a cruel backdoor admission. Cruel forced oral sex instruction from the teacher. In a state of masochistic awakening, she masturbates and ejaculates, reaching unbearable orgasms. Forced oral sex by her rampaging father, she is subjected to waterboarding in the bathroom. Finally, a forced oral sex 3P involving the teacher, the chairman of the desired school, and the father, with her ejaculating non-stop! A twisted love drives the father mad.