Res! With the idea of they live a double life through the day and the night, during the day they're a beautiful king and at night they turn into a thief, a monster that lives by no code but his own. In reality the two of them are different people with different lives neither of them remember. Was going to go with the idea of a king, but I've seen similar ideas of a ruler being used too much for me to want to do it.
Names are:
Day form: Freyr
Night form: Nyx
-They were not born this way, instead they were born as brothers, a deep hatred for their counter part (night hated day and vice versa) so they became. A family of riches had torn them apart, day was the prized, perfect child, perfect posture and attitude while night was a low living failure, kept to the shadows with a loathing for their brother.? Either way something along the lines of they were born as separate beings, twins (their mother and father were the moon and the sun, insert custom world gods here) that couldn't be more different from one another, were cursed to share a body as a teen (living different lives)
"We were once brothers created from the goddesses commonly called (1)Sun and Moon, In a way we are still brothers, but things got in the way...We wanted the same thing, but yet it was so different from the other."
(1)*Sun and Moon goddesses in their world/lore were both females that loved each other dearly, they lived two very different lives in the day and night, joint ruled a great kingdom while during the day Sun took the watch and Moon took watch at night. They had loved one another great, but when threats fell upon their kingdom they took a permanent form in the sky, no longer able to be with the one they loved or rule their kingdom on the ground. With two problems on the table they 'had' a child in turn that became twins, one for the sun and one for the moon so they'd never be without a piece of the other. Instead the brothers Freyr and Nyx became hellbent on being the one true ruler of the kingdom. Sun and Moon returned to the land one last time cursing their own sons' with the exiling of Freyr and Nyx, cursing them with the pain of never being able to be alone as they would now share a body and in the day Freyr would be in control and at night Nyx would take command.
Powers:
Freyer can walk the dreams of others, weave them and mold them for the dreamer, he watches over them, collects them for safe keeping from his own brother. He isn't able to create dreams, but he can bend and shape them to give them the view he seeks.
Nyx on the other hand makes nightmares ranging from simple fears to monstrosities that keep people frozen in sleep until they're over.
Their shared body isn't exactly shared as during the change things about them change such as their height and bone structures, it often leaves both of them in pain as their body is changing rapidly.
-When it comes to relationships (romance) Freyr hopes to find someone that will dote on him and vice versa, maybe one day a family of his own. He's very spiritual based in a way, believes a lot in fate and destiny. Freyr is a kindhearted man, carries himself like royalty, but has a soft demeanor. Nyx is a monster, during the night he runs wild lavishing in one night stands or baiting people in and breaking their hearts, opening small wounds to slip in and create his master pieces (night mares). He's gone on believing that he will never truly be loved once people learn of the thief he is or the things he creates.
Really big world building with this boy.