My Husband, the Enemy Prince

I prepared poisoned soup for my husband. He drank both shares, knowing it was poisoned. He was the Third Prince of Western Li, not Eastern Yue's Crown Prince, sent to sow chaos. Serena Sullivan's death is suspicious. I uncover a conspiracy of switched identities and spies. I carry a mission, he harbors deep affection. Our bond ends in mutual destruction. We perish. My Big Sis is appointed regent. I can finally see Serena Sullivan.