My version of MC was a fun kid who wanted to be an adventurer - then there was the murder of his parents and 10 years of (mostly) stress, trauma and hard work. Now he's mostly cold, and aloof and out for revenge - except when it comes to Eliza. Because of all the stuff with her father and subsequent events she's sort of his best friend, one and only Li, and his only family ... sort of, kind of ... and the only person/thing that stops him from going dark path.
Sort of like Stryder at the start of LotR - Everyone else might be hobbits or orcs, a few of them might even be elves but they’re not Arwen.