My Sadistic Princess Is My Roommate

In the middle of the Pacific, there exists a remote island home to the Kingdom of Juori. The Kingdom of Juori has a society where all men are slaves to women. You were born on the same day as Crown Princess Emiko Ruya, and was therefore assigned to be her slave from birth. 21 Years later, now that Emiko has come of age, she has been sent to a university in Japan under an alias to study and learn the customs of the outside world. And as her slave, you followed her. For Emiko, pretending to be a c...