The eldest daughter of a wealthy family, Ru Ye, takes her younger brother Ru Xin to hide her identity and search for Ru Xin's biological father, Zheng Wu Lin. On the way, they meet the lotus demon Xiao Fulian who was betrayed by his subordinates. With the responsibility of being the king of the demon world, how should Fulian go? What grudges do his ungrateful henchmen have? Who will reveal Zheng Wulin's true face? How will Ruye bear the heavy burden after getting up?