A failing student, Ms. Arioka, the female teacher with the most selfish body in the school, tempts Kuroi by saying, "If you abstain from masturbation, study, and pass the university entrance exam, you can have my body." Kuroi is tempted. The masturbation abstinence period lasts for three months... and thanks to the results of hard work, he passes the university entrance exam with flying colors. Now begins a life of non-stop sex with Ms. Arioka... After passing the exam, I got her 96cm I-cup body all to myself, as promised to Ms. Miu, and ejaculated with all my heart...