Alien invaders called Kiseichuu are plotting to gradually eradicate humanity by draining them of their H-energy, or libido, and undermining human reproduction. While this issue looms over society, Retto Enjo discovers that his childhood friend, Kirara Hoshino, has closed herself off from the world after a traumatic experience, and is worried about her. He speaks to her for the first time in many years, but their rocky relationship is unchanged. Retto is discouraged by this but encounters a Kiseichuu on the way home from school. He explodes with rage when he witnesses people being drained of their H-energy and losing their vitality, which causes him to…
In the end, if you steal human desire,
all they're left with is an empty shell!
Genau das passiert letztlich
mit jedem Menschen,
Al final, si les robo su deseo humano,
Les humains privés de leur éros
sont vraiment pathétiques !
Depois de roubar o desejo humano,
não sobra nada, só uma casca vazia!
Жалкие людишки, украдёшь у них эрос —
и всё, с ног валятся.