Dokyuu Hentai HxEros

Summary

Earth faces an unprecedented threat from an invasion by the mysterious Kiseichuu. The Kiseichuu feed on human sexual energy, also known as “H-energy”, and weaken the human population.

High school student Retto Enjou is a member of the hero group HXEROS, who fight together to save the earth from the Kiseichuu.

(Source: Funimation)