The love practice program and the unprecedented declining birthrate crisis that Japan faces in 20xx are the last hope. Under the National Survival Emergency Measures Law, Kaguya Hime Gakuen was selected as the government's model school. There, a bold education begins that makes students "practice" love and intimate relationships - in other words, sex. Hearing rumors that participants in the love practice program would have additional internal points and would have an advantage in advancing to higher education, Rika Tsubaki intended to participate with her handsome boyfriend in the next class. However, she later learns of the rule that "you cannot pair up with classmates from other classes." Unable to cancel after signing the consent form, Rika ends up pairing up with a hated chibukei boy. She is made to kiss, fellatio, and creampie sex while being monitored by an AI robot…