Unaired episodes bundled with the 11th and 12th manga volumes.

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)

When the mantis-like aliens known as Kiseichuu descend on Earth, they have one goal: eradicate the human race. They do so by absorbing humans’ H-energy–the sexual passion that fuels so many people and keeps the species reproducing! The government has assembled an elite team of superheroes to fight the bugs, aided by technology that allows them to transfer their erotic energy into super powers. 
 
High schooler Retto Enjou is recruited onto the team, partnering with four beautiful girls, one of whom is his childhood friend Kirara Hoshino. Though they were once close, they’ve grown apart in recent years, since Kirara turned distant and aloof after an encounter with the Kiseichuu in her youth. Can Retto save the world, keep his team together, and maybe even melt his childhood friend’s newly cold exterior? 
(Source: Seven Seas Entertainment)
 
Note: Includes 6 extra chapters.

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