Everyone is afraid of this yellow-haired boy with a crazy temperament, but no one knows that his only weakness is his sister, who is extremely paranoid. Anyone who dares to bully his sister will come to educate him personally. In order to protect his sister's life, he disrupted the situation and smoothed the bumpy road, just to be her most loyal backing. He is willing to be the unique sister-supporting demon to protect his sister's journey and build a piece of his own world.
