Xia Sangju and Isatis Root

He was grounded by his adoptive father due to his illness. He rebelled and fled and hid in the royal palace, hoping only to support justice in the world. But people outside said they knew him, but... Or that he had already died and turned into ashes! Or that he is being kept in a dark place! No matter who sees him, they think he has a face that "deserves to be exterminated"! Why, doesn't he deserve to live?