When Mu Siyu first met Ou Yuchen, she thought he was a cynical young master. She thought that their worlds would have no connection, but she never imagined that he would turn her life upside down. They met, missed each other, hated each other, and they were in agony. If killing was not repaying life, she didn't know how many times she would kill him, but in fact, she did meet him with a knife. But even so, when they suddenly looked back, they knew they loved each other.