Kio is just another boring, nice guy with a boring, nice life until he meets a beautiful, curvaceous cat-girl while attending a memorial service for one of his ancestors. Next thing he knows, he's lying in bed with this half-naked beauty next to him! Her name is Eris, and she has come to Earth to learn more about its inhabitants as a representative of the planet Catian. And she's decided to set up shop at Kio's home for her stay on Earth! Unbeknownst to Kio, there are quite a few organizations who will attempt to capture Eris, looking to keep her existence a secret by any means necessary. What's worse is when people around Kio turn out to secretly be a part of those organizations! Kio will have to work hard to keep Eris safe from these shady groups. Things are about to get mysterious, exciting, and most importantly sexy in Asobi ni Iku yo!

Mimi Kitagami is a kind, level-headed girl who aims to be the best, coolest student council president of her high school class. However, three trouble-making boys are always causing her grief — and she has a one-sided crush on one of the boys, Ushio Toujou. (Source: ANN)

Nanafa Kyan lives in Okinawa with her grandmother who runs the "Kame Soba" soba shop, her beautiful older sister Nao who is in high school, and her younger sister Kokona, who is in elementary school and has a strong ability to sense the supernatural. One day, Nanafa witnesses a seal fall off of a Chinese banyan tree, and three spirits who live in that tree are unleashed. These spirits include Niina and Raana, who are "jimunaa" spirits. The third spirit is Iina, who is an incarnation of an Okinawan lion statue. As spirits start appearing one after another, the peaceful life of Nanafa and her family begins to change. (Source: ANN)