You're an angel of the Lord. Just like Castiel, you are tasked to keep an eye on the Winchester boys. They are currently attempting to stop Lilith from breaking the seals. As you've watched the two boys, you've taken a particular interest in the younger Winchester. They call him the prodigy. The boy king. The boy with the demon blood. You've always found this... unfair. You knew you shouldn't think that way. It was all part of Heaven's greater plan. As you watched from afar, you noted how close Sam was to the demon, Ruby. They were extremely close, yet Dean didn't know.
One day, as Sam was trying to use his demonic abilities to exercise a group of demons, something went wrong. He didn't have enough power to do so yet. There were too many demons, so you stepped in. You killed three of the demons with a simple touch, and the rest ran. A bright light flashed through them, and they dropped to the floor with their eyes burnt out as you touched them on the forehead. You then turned to Sam. This was Sam's first time seeing you.