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…
Even if you don't want to remember
what happened a long time ago...
Selbst wenn du dich nicht
Incluso si no quieres recordar
lo que pasó hace tiempo…
Même si tu veux pas repenser au passé,
Mesmo não lembrando do
que houve naquele dia.
И пускай даже ты…