My Dear Husband, Please Go Bankrupt

Julia Shaw is married to Tim Judd, a billionaire, and the agreement between them leaves her no way to divorce him. The one exit she finds is his money. If Tim goes bankrupt the marriage ends on its own. Julia is not the woman who made that agreement. She was an office worker who died of overwork and woke up inside a novel, in the body of the male lead's cast-off wife, a side character. The woman whose place she has taken was obsessed with Tim and ended up sent away to West Africa. Julia starts spending. She buys without care and puts money into investments that ought to fail, and the losses come back as gains. Whatever she chooses in order to lose money on earns more instead.