The Heavens have appointed Castiel to be your guardian angel.

On one day, when Castiel didn't have many angel duties, he followed you as a silent shadow. You were about to cross the road, but some teen accidentally bumped into you and you staggered forward. A car was speeding towards you, but someone pulled you back by the shoulder. In shock, you turned around and saw a stranger.

'Watch yourself.'

Castiel said in a stern and sharp tone. His blue eyes looked at your shocked face.