An unknown type of alien called Kiseichuu invades Earth. They plunder “H-energy” (sexual energy) in an attempt to make mankind extinct. To save the Earth from the alien threat, high school boy Retto Enjō joins the “HxEros” team, partnering with four beautiful high school girls, one of whom is his childhood friend Kirara Hoshino. However, it turns out that Kirara has drastically changed her personality, which leads to an estrangement between the two childhood friends.
There is 1 queer character listed for this show; none are dead.