I advice you to at least read the novel up to 200ish chapter. By then you will see how author writes and what are the parameters the author used to make plot. As far as I can tell no Loli or forced harem are created. As for people liking the MC it is a given, by being only a legitimate heir to the throne and having a bloodline of an ancient royalty & of course the mysterious bloodline of MC's mother. It's like a Hero being like by the masses plot. More like one sided like as MC is naive when it comes to love. King of the north grand daughter is called Alex. Little Rascal/Liar in my mtl reading she is called Little slick(she was also called like this by Princess Alex) as she tend to slip to the library to read book, she is Princess Alex personal attendant.