As the Demon King, Yifan Zhuo uses his knowledge and power, collected over millennia, to defeat all foes, until the day he is betrayed. With his last breath, the demon king manages to reincarnate... but into the body of a puny young servant! To Yifan's dismay, the servant has a spirit bond with his mistress, Lady Luo. Yifan, now known as Fan, finds...