Investment elite Shen Zhiyi accidentally transmigrates into a historical romance script, reduced to a cannon fodder princess consort destined to perish on her wedding night. Breaking the predetermined plot, she forms an alliance with the ninth prince Gu Changyuan, who feigns disability, using her extraordinary accounting strategies. Together, they scheme in business and plot, repeatedly breaking free from the shackles of destiny set by the original author. Developing a bond through probing and tactical games, they refuse to have their endings written by others, choosing to write their own destiny and carve out a brand new life of their own.