Princess Prince is a very amusing shoujo manga. In the kingdom of Gemstone, the king is father to twins: a princess and a prince. Prince Matthew is every inch the bishounen and all the girls adore him. Princess Lori is actually Prince Lawrence, but has been raised as a girl due to a prophecy made at the twins’ birth.
Princess Lori and another girl have fallen for each other, but she doesn’t know the Princess’s true nature. And Brandon Walsh, a thief sent to the kingdom, has decided that Prince Matthew is really a girl and has fallen for him.
Naturally, many complications develop, and the book is a very entertaining read.