D-100: Marry My Ex To My Bestie.

On her wedding day, Yerin is betrayed by her fiancé and best friend and loses her life. In her final moments, she realizes the only man who truly loved her was the one she once rejected. When she wakes up at the moment of the proposal, she chooses revenge—bringing the two together and leading them toward ruin. But as she grows closer to the man she once turned away, her feelings begin to change. Caught between revenge and love, can Yerin reclaim everything and find true love?