I'd Rather Die Than Become the Shadow Queen

Feng Ya unexpectedly is reborn as a busty girl and meets a lunatic who claims to be the heir of Shadow. Not only does he want her to sleep with men, he also wants her to bear children for other people!

What the hell, is everyone in this world crazy? I'm a bona fide guy. How could anyone possibly sleep with me instead of the other way around?

But then... damn, this is actually great\(^▽^)/!

(This is a gender-bender novel.)