Based on the Manga of the same name, Princess Knight is about the princess Sapphire, who has to pretend to be the Prince of Silverland. Only this isn’t just a case of pretending to be a boy (which is a very common trope for Manga and Anime), no, she was born with two hearts. The blue heart of a boy and the pink heart of a girl.
It’s really confusing.
There is 1 queer character listed for this show; none are dead.