Me, the Killer, and Her, the Killer

You can't keep a fire hidden forever. Tang Chen knew that very well. He had kept his identity as a hitman secret for three years, and his wife, who had shared his bed for all that time, still had no idea.

You can't keep a fire hidden forever. Su Qian knew that very well. Her husband, who had shared her bed for three years, still had no idea that she was a hitman.

Until, during a mission...