Kingdoms Apart (Dukexiety) *on hiatus*

The Kingdom of Caelum and Lethe are separated by a forest and a law. The law states that citizens of either kingdom must never come in contact with each other. They mustn't see, speak or go near each other, and it's been that way for hundreds of years.
But what happens when the Prince of Caelum 'accidentally' finds himself in Lethe and meets an attractive boy there?

Idea/concept given to me by: @Creepypasta_fander

This is dukexiety because I love this ship (big multi-shipper) and it doesn't get enough love.