Responses
Right, Belgarde says Rian resembles his sister due to her hair, saying black hair is uncommon amongst humans. That's why he mistook her as Cecilia.
I've heard spoilers that Belgarde is the confirmed ML. I don't think Rian and the merchant have bonded enough to the point of affection that Belgarde and Rian have for each other. Every time the merchant tries to court or flirt with her, Rian doesn't reject him but she doesn't really open up as much as she does with Belgarde.
I think there is a novel but I'm not sure where to read it. ╮(￣▽￣)╭
He said that she reminded him of his sister, people not that she looked like his sister. Her black hair makes him think of her, but his affection is changing. However I'm getting seriously confused as to who the ML is. I'm pretty sure the second and first human princes are out of the running, which leaves the merchant and the demon prince! Does have a novel so that I can read it?