Summary My Wealth Roars from Kainu Manga
My Wealth Roars summary: Su Chengcheng, a broke girl, worked so hard to make a living, but life didn't treat her well. She got bullied by her classmates and cheated by her boyfriend, even her boss tried to harass her... When she hit bottom, a mysterious man showed up and claimed to be her personal butler. He told her that she was actually the heiress of the Su family, the richest family in the world?! In that case, she vows to get back at those who once humiliated her!