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.
Okay, let's each put a hand
on the other's chest.
Na schön, wir fassen uns gegenseitig
Bien, que cada uno ponga
una mano en el pecho del otro.
Alors, on va chacun
écouter le cœur de l’autre.
Cada um coloca a mão
no peito do outro.
Так, сперва… положим руки 
друг другу на грудь.