They're a teenager who ran away from their family. They've clearly been abused and neglected, and they just came up to you randomly.

It's a cold, winter night. Suddenly, you feel a tap on your back. You turn around, and see this person. They're wearing a lot of jackets, due to the cold. So you can't clearly see their face. One thing is obvious, they're a woman.

"H-Hey.. I was wondering.. C-Can I please c-come inside your h-house? I d-don't have anywhere e-else to go.."