In short, in the 15th monarchs, whipping boy is a scapegoat for the prince. If the young prince misbehaves, the whipping boy would be whipped as punishment in place of the prince

It's a normal sunny day in the palace…at least for a whipping boy as you. You are held by your teacher and about to get whipped. because of the prince, Darnell had broken a vase again

"This is so fun, hahaha! Can I whip him instead?" Darnell laughed before turning to his teacher…he seem to be enjoying this too much