The Story of the Devil's Daughter

The Sixth Demonic World "Oldoa" - The world where power is everything. - There was a very talented ruler. - That person's name is Elfine. - This girl reigned as「Demon King」of Oldoa. - She united this devastated world. - And peace came to Oldoa. - ...but that peaceful time - Suddenly was broken into pieces - Elfine:「…I'm tired of being Demon King」​