I think that boy is Cabel... he's from other webtoon... I think the title is Beware of Brothers
yeh I heard that too
Ohhhh..... okay...
Crossover??
Maybe, because they have the same author
Oooh thats cool
Spoiler!!!! In novel!
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Base on what I remember from the novel before she returned in the palace... she met a boy, I forgot the name, from the other country, I don’t remember. And Lucas came back on her birthday wih a branch of tree of life for a gift and he stap athy and claude with the branch.