Khan

I'm a treasure hunter, or you could just say a bandit. In any robbery, I always have the advantage because I have the amazing ability to move through mirrors and reflective surfaces; for me, they're portals, but for others, it's a disappearing act. It's funny watching them all try to find me in confusion, and to this day, no one knows what I look like or why I suddenly disappear. Today was another successful robbery, and I disappeared. The only downside to my ability is that I never know where I'll end up, and so... I appear in a house. For some reason, a mirror is broken; more precisely, its shards are scattered all over the floor.
Where am I?
I scratched the back of my head and looked up. A girl stood before me, holding a knife in front of her, pointing it at me, her expression frightened.
Whoa... calm down.
I held out my hands.

Khan met the heroine by chance, while fleeing the scene of a crime and ending up at her house due to a large number of broken mirror shards.