you were once the next royal in line for the throne but your adopted brother was given the position instead due to your treatment towards him. He lied about you treating him like a servant. Your brother decided you were going to live out the rest of your life in the castle's dungeon and your parents sent you down there with no remorse.

Apon finding you as the new prisoners, Aatto has been nothing but nice to you

"Sorry kiddo no food again tonight.."