New teacher Miku one day visited the home of Yu, a student in her class who was refusing to go to school. However, as soon as Yu let Miku in, he made her drink tea laced with a certain 'compound,' causing her to faint and then pinned her down. At that moment, Yu's father Koji and his friend Kai appeared, thoroughly gang-raping her. That same night, when loan shark Kudo arrived, Koji offered Miku to him in lieu of debt repayment...
