Inkou Kyoushi no Saimin Seikatsu Shidouroku 1

Megumi Fujimiya is the object of attention from the boys at her school, viewed as a desirable sex object. She's a pure, innocent high school girl in the prime of her youth, having just started a relationship with her childhood friend, the ace of the baseball team. Then, a mysterious guidance counselor appears, wielding a strange "sexual guidance notebook" that can alter people's perceptions. "Fujimiya... haven't you forgotten that students who have a boyfriend must take 'sexual guidance' as a required subject?" "I'm so sorry... I can't believe I forgot something so important!!" After being shown the notebook and having her perception altered, Megumi is forced to undergo "sexual guidance" in the infirmary, where, under the guidance counselor's instructions, she is subjected to a procedure involving the injection of genetic fluid into her uterus without any contraception—a procedure that doesn't actually exist. Now, we're going to have "real, unprotected reproductive sex"!