The Misfit of Demon King Academy Episode 8

"It's only about you and me right now!"

- Anos to Lay Glanzudlii

The Final Duel (二人の決勝戦) is the eighth episode of The Misfit of Demon King Academy anime series.

Synopsis
Anos and Lay battle head-to-head at the Dilhade Magic Sword Tournament finals. With Sheila being taken hostage, the two are unable to fight at their full potential and come to a decision. Just as the showdown reaches its climax, a huge Magic Circle appears in the arena. The scenery around Anos and Lay begins to distort and they are taken into an alternate dimension. The mastermind behind the recent events finally reveals his true identity.

Summary
Before the duel commences, Anos is told about the special rules that would harm both Lay and Sheila: If Lay is defeated, the Contractual Demon Sword will destroy his source. If the Spirit Drain Ring stops receiving Magic Power, Sheila's condition will get worse. However, Lay decides to fight on his own terms despite the blackmail, allowing him and Anos to go all out. Ultimately, Anos emerges victorious.

Melheis then reveals himself as the mastermind behind the tournament and transfers the stage to another dimension. He summons Gaios and Ydol to fight Anos, but Lay reappears and beheads both Elder Demon Emperors. It is revealed that Lay didn't die after being defeated, as Anos destroyed the device in his last strike. However, Melheis reveals that he has Sheila hostage, causing Lay to jump after her to another dimension.

A confident Melheis heads to an Absolute Space where he attacks Anos and Lay with Beno Yeven. Because they are separated, Anos is forced to use additional magic power to protect both places. As Anos begins exhausting his magic power, Melheis starts to gloat about their defeat but is shocked when Lay uses his mother's spirit sword form to slash through Beno Yeven, his "Dimensional Prison" sub-space, and eventually scratch his face with the sword slash.

Nevertheless, Melheis boasts that even if his Beno Yeven was erased, he has more than enough reserves left. But suddenly, Anos appears behind him by tracking the spirit sword's scratch on his cheek. Melheis quickly gets away and traps him inside of a Beno Yeven silo before detonating it. He rejoices in his victory but is shocked to see that Anos survived.

Anos then summons Venuzdonoa and explains that after reincarnating, he could only access 1/10 of his magic power; but thanks to the effects of the Spirit Drain Ring and Beno Yeven, his Source of Destruction was reawakened, and he regained all of his magic power. He attacks Melheis, but he successfully dodges the slash. However, Melheis' legs are suddenly cut off from his body, as he was still slashed because Venuzdonoa destroyed the reason that avoiding the attack meant dodging it.

Anos is able to repeal all of Melheis' attacks and use Venuzdonoa to pierce into his skull, destroying the device embedded inside of him. Melheis regains control of himself and explains what happened to him after meeting with Anos. He also summons the Elder Demon Emperors who were killed by Lay earlier, allowing Anos to separate their sources from the sources that were controlling them. When Anos tries to revive the latter ones in order to extract information about Avos Dilhevia, an unknown figure appears to destroy them after breaking into the Dimension Prison.

After the figure leaves, Anos instructs Melheis to resurrect Gaios and Ydol, as well as to undo the Dimension Prison so that they could return to the real world. After healing Lay, Anos resurrects Sheila, revealing that her true form was a sword, and the two embrace each other. Afterward, Sasha rewards Anos with a commemorative sword and kisses him on his cheeks.

Adaptation Notes
Differences from the light novel:
 * In the light novel, Melheis threatens to destroy 46 jewels that would erase people's memories of her, ending her existence as a spirit.