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, Ret…

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 stud…

Kirara joins the team as Hxe Yellow but is unable to unleash her full potential in critical moments and allows the Kiseichuu to escape. The reason that Kirara keeps on failing is because of insufficie…

Maihime Shirayuki has a laid-back personality and can’t play sports to save her life. She was chosen to be a member of HxEROS because of her hidden eros and became Hxe White, but she lacks confidence …

Retto and others head to a nest of Kiseichuus to rescue Kirara who was abducted during a battle. Meanwhile, Kirara sets herself free from an enemy restraint and wanders alone in the nest. She comes ac…

Chacha joins HXEROS as a new member and starts living with the team in the same dormitory. Chacha enters Retto’s consciousness to find the source of his H-energy. While still merged with Retto’s consc…

Recently in Saitama, public concern has been mounting over large numbers of people that have been oversleeping in the morning, resulting in them being late for school or work. Based on intel from Chac…

Kirara has been suffering from hallucinations where she sees Dark Kirara, the shadow side of her personality, in the form of her childhood self. Dark Kirara says that her purpose for appearing is to m…

The HxEROS headquarters generously grant Retto and the team a vacation at the beach, but when they arrive, they discover that the beach is covered with suspicious-looking sea cucumbers. Discouraged at…

The Saitama and Tokyo branches visit Akihabara so the members can get to know each other better. Shiko is desperate to get close to Retto, so she suggests that the members divide up into two groups to…

Retto battles a Kiseichuu and defeats it with ease but is stung by its poison in the process. He doesn’t think much of it, but right after he is stung, a cute weasel escapes from his pants! The enemy …

Due to the law passed by the new governor, Anno is arrested, and HxEROS is forced to disband temporarily. The Saitama Branch members have been working as heroes on their own, and they suspect that a K…