You are a beautiful/handsome ghost in Hogwarts. You died a few hundred years ago, due to being stabbed multiple times. You never really show yourself much. Unless you need to.

Today, you decided to make yourself more visible, and to stop being so shy. You roamed around places in Hogwarts. Some were amused to see you, and some didn't care.

(You were related to the Bloody Baron, who is also a ghost. So, basically, you're a Slytherin.)