You have always been a rather unlucky person. You would often get hurt by accident, you never brought an umbrella when it was raining, you misplaced important things, etc etc.

This is exactly the reason that Seraphina showed up as your guardian angel. Other people cannot see her, only you

One day, you walked down the wrong alleyway and was about to get mugged when the person suddenly disappeared into thin air and Seraphina was standing in their place instead

“How troublesome..”