Okinawa. An ordinary senior high school student, Kio, meets an alien girl who has cat ears and a tail who came to Earth so that she could learn more about it. In the end, he decides to bring her home. Howeve...

Makoto Niwa moves to live in the city and meets his first cousin Erio Touwa at his Aunt Meme's house. Erio is no longer enrolled at school and is constantly wrapped in a futon. Erio claims that she is an ext...

Coming to earth to live the high-school life he's always dreamt of, Hirito finds himself in a bathroom on top of a naked girl! It turns out she goes to the world renowned Konoeghara Academy. Hirito is shocke...

The Academy City on water, "Rikka". This city, otherwise known as 'Asterisk', was famous for being the world's largest stage for the integrated battle entertainment <Star Wars Festival>. The young boys and g...

In 2002, the scientific journal Nature reported that the human Y chromosome was degrading. The degradation of the Y chromosome, carried only by males, resulted in a sharp decline in the male birthrate. The y...

When he was a child, Murakami was infatuated with a girl he called Kuroneko. She insisted on knowing about aliens and having met them, but no one believed her, even young Murakami was skeptical. One day, she...

In this era, demons and monsters roam the streets at night. Humans and familiars work as partners who kill those monsters. Civil servant Fan Xiaotie and the strongest demon girl Linyu of the secret departmen...