This time, we propose an abstinence mission to Sayaka Otohaku, who is said to have more sexual desires than most people. We test how much abstinence a person needs to endure before they can reach new heights. Otoshiro is asked to wear a chastity belt, and cameras are installed in her home to monitor her private life. What fate awaits her after she overcomes 744 hours of abstinence...Otoshiro is teased even more after abstinence ends, and wants to be penetrated, so she becomes aroused to the max and starts seducing the erotic man on her own!?