He is a smart boy, but he has difficultys when it comes to his own opinion.
He is insecure and trys to adapt to his environment, so he is easily manipulated.
On the other hand he knows exactly what he wants and what his dreams are.
Lucian likes to read and he loves spending time outside under the sky. His family is wealthy and always supports him, but sometimes he gets the impression that they only support the boy they want, and not who he is. But he can't really name it, so he trys not to care, and as long as he is well-behaved nothing will happen.

At home he left his cat "Snuccle" and he misses it already.
But still, he is excited to go to Hogwarts, and specially wants to learn more about astrology and potions, but he is not really interested in transformation and divination.
His favourite house is Slytherin, where his entire family belongs to. (At least they make him believe it xD) But he also likes Ravenclaw, and somehow he thinks that the person he wants to be belongs there.
Lucian is insecure about his House, this is why he is very, very nervous about the sorting ceremony.
He probably won't accept being sorted into a house where he can't feel some sense of belonging, and he is a bit afraid of the faint he feels, when he can't change anything about it.

He first experienced magic when he was about 6 years old, he played with his cat in the woods nearby, where he got lost and then, at night in the dark, he accidentally lighted a fire out of fear.
His parents where a bit angry because he burned a bush and a forst fire (that didn't happen, thank Merlin) could be dangerous.
On the other hand they were very proud of him, and together (after they extinguished the fire) they ate some cake