Broke Bride, Woke Up the World's Richest

Vespera's salary of three thousand a month is the largest fortune in the world. Prices and holdings everywhere fell by a factor of a hundred million while she was unconscious, so the man who had been the richest person alive is down to a little over a thousand. When she gives one to a donation drive it goes around the country as news. Her groom had walked out on the wedding that morning because she had no money. She went up to the roof of the hotel belonging to the Lu group and stepped off it, and the head of the group caught her on the way down. She was still out when the rules changed, and she wakes into the new world without knowing yet what her savings are worth.