Cornered by My Ex's Sister After Breaking Off the Engagement

After years of being engaged, Zhou Qi walks in on his fiancée with his sworn enemy. Furious and betrayed, he breaks off the engagement on the spot—only to catch the attention of someone far more dangerous: his ex's ruthless older sister. She's cold, powerful, and has her own plans for him. What starts as revenge quickly spirals into a game neither of them expected to play.