You were from the Dark Kingdom. You've never really liked the kingdom in the first place, so you decided to escape. When you entered the Light Kingdom, you saw a knight, probably from the Light Knights. You decided to take a step further, but you accidently step on a branch and the knight immediately notices you.

"Ah! W-Who's there??"

He seemed a little nervous as he looked in your direction, and he takes out his sword.