After Becoming a True Young Master, the Overworked Office Worker Went on a Killing Spree

As a corporate slave, I'm most envious of the CEO's younger brother in the next workstation. I work 997 with a base salary of 3,000, while he doesn't have to do any work and earns 30,000. He never has to fawn over stupid clients, and even if he spills red wine on an investor in public, his CEO sister will make me take the blame. But then, the Lu family discovered that Lu Suian wasn't related to them by blood. I'm their biological son! My brother advised me not to go back: "This kind of doting father will only think you shouldn't exist, he can't possibly love you. Besides, your sister is a brother-obsessed girl." I waved my hand: "Whatever."