The misfit of Demon King Academy 3 history's strongest demon king reincarnates and goes to school with his descendants

"What if you were the strongest demon king in histoy... but nobody believed you? The demon sisters Misha and Sasha face a tragic fate because of a spell cast on them by a mysterious figure seeking to harvest their magical power. While Sasha schemes a way to bend the outcome to her will, Misha calmly accepts the fact that she will not live to see tomorrow. Their fate seems all but certain, and the end just a matter of time...though not if Anoth...