Reborn into a Tycoon Family, I Became the 38th Young Master

At last, a blond young punk gets reincarnated as the son of a wealthy family. He thinks he can look forward to being born with shares, getting a luxury car for his hundredth day, learning horseback riding at three, shooting at five, starting a business at seven, and inheriting the company at nine, cruising straight to the peak of life. Then he discovers he's merely the thirty-eighth son his tycoon father has churned out. He's been scammed by reincarnation, but there's no one to complain to. With no choice, he grits his teeth, competes fiercely to survive, and uses the rules to beat the rules, leading his brothers in their struggle to survive in the wealthy household.