If you're looking for manga similar to Eternal Love (Light Novel), you might like these titles.
An interpreter from Japan meets a middle-eastern prince who resembles an old college friend.
A novelist visits an Arabic country and saves a little boy from the Arabian prince, and in turn he has to seduce the prince every night before the prince gets bored and cuts the novelist's legs off.
"I fell in love with you. I want to make you mine." The fervent courtship from an Arabian prince and an aggressive handjob!?