I, S-Class Guide: What's Wrong with Switching Sentinels?

Catching her fiancé cheating at a lavish banquet, Jiang Cheng does what any sensible woman would—hands him a breakup notice with a smile. His response? Exile her to the deadly wastelands. Big mistake. While everyone expects her to come crawling back in tears, she thrives in the chaos like never before. When she returns to the upper city stronger than ever, her ex blocks her path, begging for forgiveness. Her reply? "Too late—I've already bonded with a new sentinel." She casually pulls forward his younger brother with a wicked grin. "Looks like we're still family... just in a different way." In…