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 Enjo is a member of the hero group HXEROS, who fight together to save the earth from the Kiseichuu.
But I've changed.
I'm not the precocious girl I was then.
Aber so bin ich nicht mehr!
Pero cambié. No soy la niña precoz
que era entonces.
Mais j’ai changé,
je ne suis plus une gamine trop précoce…
Mas eu mudei.
Но нет! Я стала другой!