Definitely read this for the sexiness. We have semes, ukes, and more switches than any manga I've read! A fantasy world with benevolent ruler of a small island paradise, suddenly gets invaded by demons searching for an artifact. These demons don't kill, but take over the mind by having sex with all the humans and making their bodies fall in love with sex. In his last act of power, the prince saves two of his guards and separates their island from the real world, and they try to get back to their island to save their prince by becoming indifferent to the demons sex magic, by having sex! Uncensored, hardcore sex everywhere, done in a pretty and sexy way, but be warned, the plot is designed for the sex...lots of fun smut
Nightmare Fortress