After I Transmigrated, I Became a Good-for-Nothing, Spendthrift Young Master

Blurb: Si Yu accidentally let slip that he only ate natural foods, and the whole internet started calling him a spendthrift. His father wasn't having it. "We can afford to support him. What business is it of yours? Sour grapes from people who can't afford them." With one line, he shut up the troublemakers. After transmigrating to the future, Si Yu spent his days living off his parents and squandering their money. Then he accidentally discovered that battle cards made using Chinese had ten times the energy of other cards. At last, he was no longer useless. Theme: Creating new possibilities for scientific development through invention.