私立フルブルーム学園は、AV科・ホスト科・ペットメイド科・アブノーマル科の学科で成り立つ、性を学ぶ国内唯一の男子校!　学園のAV科に通うイオンは、学園長の浅葱から直々にSEX実技の授業を受けることになってしまい…!?　校内恋愛禁止の校則の中で巻き起こる、禁断の恋模様! Because the way people have a high interest in "sex," a sex school was formed in order to fulfill the students' desires and help them become more advanced in their skills. Ion, in order to help pay off the debts in his family, has enrolled in the school, hoping to gain knowledge and sell out his body in the future to gain money. But Ion gains more than just "knowledge" in the sex industry, and he starts to fall for his Instructor Asagi... but love is strictly banned from the school...