well in my opinion it's make sense that the crown prince is the male lead and there's a reason for what i said. first, if the male lead is one of her brothers wouldn't it be hard to open up to other people because they were once family(not a real one though). well even if it's easy to open up would others accept them? second, if eclise is the male lead why in the world his scene so(im sorry for saying this but) his scene is always about the same things, like the ring, his training and boom! his % rising.....
well for the one who didn't read the novel we wouldn't know who's the nicest and the badest so let's wait for the story to continue updating! (⌒▽⌒)