I became the villainous son

Shen Micheng, a successful ceo who knows nothing more than struggle in his life, he was orphan with no parents and endless bullying in orphanage with scares covering most of his back, he got adopted by a rich family only to find he was just a donation bag for their sickly daughter, but how could he refuse, he was getting shelter and a way to escape the path of misery, he didnt complain they took his blood, didn't compain when he had to donate a part of kidney to their daughter and undergo surgery without compain, but he went on rampage when that same girl who he have gone endless surgery for disrespected his parents who passed away as soon as he was born, he looked at her coldly and left the mansion alone with nothing but memories, he worked endlessly and became a successful ceo with endless wealth but no one to care, his eyes always looked empty with nothingness, people called him empty but only he knows how much he needed warmth, how he could abandon all that wealth for just flicker of light in his world of darkness, that's why that one night when he felt that pull of story and someone to care his mind became empty and he surrendered to that warmth, he vowed to protect that one person all his life, his omega Dad, Ran Meng, even if it costs his life, he won't leave that man's hand no matter what