I Become My Killer

My first life ended ignobly, head lopped off in a dark alley. But death was just the beginning. I woke up inside my killer, a cold-blooded officer named Qian Yuliu, gifted with a terrifying system: 'Death and Substitution' – whoever kills me, I possess. It was the perfect cheat... until I discovered my new identity is a high-ranking spy for the very rebels I'm supposed to be hunting. Trapped in a ruthless, superpower-fueled empire, with superiors who already know I'm a traitor, I'm surrounded by enemies. My only option is to embrace this macabre power. But how many times will I have to die, and who will I become, before I can truly live?