Shestar and Amy are a famous duo in charge of Earth's space investigation. Today, they set out to defeat the strange beasts of the evil organization Shiranui! Meanwhile, High Priest Baal of Shiranui notices that the power of the strange beast Muramura is amplified by a certain nature of Amy, a survivor of Planet Swan. Thus, he executes the "Shestar Destruction Plan." Amy, wearing a choker that absorbs pleasure energy during battle, is carved with sexual pleasure by combatants and the strange beast Dordol. Furthermore, she is manipulated into performing embarrassing poses, and even her excitement is transferred as energy to Muramura. After being made to feel pleasure throughout her entire body and having her virginity taken, Amy's pleasure energy allows Muramura to easily crush Shestar!? What will be the fate of Amy, who lost her important partner because of herself? [BAD END]