Lord Hades' daughter, Luna, was so naughty that she almost devoured all the dark aura in the Underworld. As a result, she was sent by Lord Hades to the Mortal World for training. she chose the CEO with the Imperial Star Fortune as her "mortal dad". However, she found that the CEO and his entire family were infected with dark aura. So, the little one helped her mortal dad and brothers get rid of the dark aura, foiled the villains' plots, and found happiness in the Mortal World.