The Swapped Wives' Revenge

Ancient Shuyu Shen's fiancé loves a time-traveler; modern Shuyu Shen faces open marriage demand. Rooms connect via space-time disruption; they swap identities to marry. Modern Shuyu Shen in ancient times exposes time-traveler, develops tech, gets noble title, sails. Ancient Shuyu Shen in modern world outmaneuvers family, divorces, gets into top university. They reunite, agreeing to explore the world, each forging a new life.