To sum up Bell in a single phrase would be "Dangerously Curious". Oftentimes getting lost in the woods exploring, taking apart things around the house, and always bugging people with endless questions. He has gotten into trouble while trying to answer any questions he has come up with.

He got his nickname because he always wears a bell around his neck. It was given to him as a child because he was always moving around the house, and his parents wanted to keep track of him better. Now, its a form of comfort to him. No one except his mother calls him by his real name. Its always "Bell"

The symbol on his chest is sort of a birthmark. It means he was born into the Eyre bloodline. The Eyre are known for innate intelligence and their curiosity. It also gives him the power to manipulate energy in the world. While is he naturally very powerful, he is terrified of using it because he doesn't want to hurt anyone accidentally.