@Justking14 Not likely. Both princes would have to die for that to happen and he is a commoner without noble background, even scrapped from his family, so it's unlikely he could marry the princess even now, he would have to become noble first and have a lot of merit in the kingdom, so other nobles would accept such union.
@sjmcc13
There are quite a bit women in power here, Queen, Guild Master... So it doesn't sound so unrealistic that she could be in the inheritance with equal rights as a man, but still, from what is shown, one prince is clearly portrayed as the one to inherit the throne even if not explicitly stated. She is at best second-born kid.
@Nunally
I couldn't either, so I did a rough TL of chapter 6.2. https://pastebin.com/CttbtQJ3
I didn't bother proofreading it, but it's probably about 95% right so fuck it.
Messed up some of the page numbers, bit I fixed it.
@noobplant - I guess, the kingdom's head assassin personally wrote him a recommendation letter. And indeed, the boy has the big skill for any undercover operations - appraisal blocking that makes people think he doesn't have skills (and thus can't be a deadly assassin).