The background of this work is set in Japan, where sexual behavior has become illegal since the enactment of the Sexual Behavior Control Law 15 years ago. The protagonist, Inuda Hikaru (Komiya Rio), is a high school sophomore at Reiwa Seiyo Academy. He and his childhood friend, Minase Yu (Kawazu Asuka), who is also his rival in the same grade, live a diligent life of studying every day. One day, Hikaru was invited by his classmates Shiba (Suzuki Kosuke) and Nana (Oda Nana) to go to a club with a strange membership system called "G-Ants". There, he saw men and women who were addicted to sexual behavior prohibited by the law, and also saw the promiscuous appearance of the national actress Yusora Uchiha (Nijo Yume), who sells her purity... In the collision between reason and desire, will Hikaru eat the forbidden fruit? The extremely shocking story begins.