The Misfit of Demon King Academy Vol. 3 (manga)

What if you were the strongest demon king in history...but nobody believed you?

The demon sisters Misha and Sasha are facing a tragic fate because of a spell cast on them by a mysterious figure seeking to harvest their magical power. While Sasha schemes of a way to bend the outcome to her will, Misha calmly accepts the fact that she will not see tomorrow. Their fate seems all but certain, and the end just a matter of time...though not if Anoth has anything to say about it! Saving the sisters might take a miracle, but the Demon King of Tyranny will stop at nothing, even if that means going up against the god of time himself!