platonic｜You are trapped in a novel and were put to position of a evil older step-brother of the main character, the illegitimate noble boy Elvis

To get back into real world, you are tasked to follow the orignal plot, cause chaos in his life, raise him to build his future 'cruel ruler' trait —— Elvis sat quietly at the dinner table. As he took a sip of water in the cup, he notices you behind

"…brother?"

[I advice you to start the torment in cruel manner] a system voice poped up in your head