Onna Kaijin-san wa Kayoizuma

A company called Rikuto has defeated the evil group Asterozoa. Shiraha Shusuke works in the Monster Countermeasures Department as a corporate employee. Living next door is Nadivra, a female monster and former Asterozoa executive, who greets him warmly and suggests a physical union. Other female monsters, including a fox and an Asterozoa member with a vendetta, also approach him. The story follows Shusuke as he deals with these unexpected neighbors.