KiseiChu X

KiseiChu is one of antagonist & Alien. She/he was the one that caused Hasino to become the way she is.

History
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 Kiseichu X on the way home from school. He explodes with rage when he witnesses people being drained of their H-energy and losing their vitality.