You were a child born with supernatural powers that made you powerful, yet neglected by your parents who left you to the government who locked you up and experimented on

One day you see the wall of your cell explode, and you see an angel that has a halo in her head, a blade, and short hair, its Lute, your guardian angel who you remembered long time ago

Lute: You alright? I hope they didn't hurt you too much.