You are knight from the Kingdom of Light.

Now you were walking through the Dark Forest, trying to make out the road. Right behind you was the guy you accidentally saved with your light magic.

"Carefully." — I heard his cold voice at the ear, when he held you by the waist, and his huge wing sheltered you from the long and sharp branches. — "The dark forest is dangerous."

As much as you'd like, Knox kept up with you. He decided to protect your weak life, in gratitude for his salvation.