The Misfit of Demon King Academy Episode 7

Mother's Words (母の言葉, Haha no Kotoba) is the 7th episode of Maō Gakuin no Futekigōsha anime series.

Synopsis
"What kind of trap will the royalty set?"  Having made up his mind, Anos takes on the sword entrusted to him by his father, Gusta, and faces the first round of the Demon Sword Tournament. At the same time, Lay holds his chest down in the player waiting room. Anos feels the possibility of a hostage, saying that Lay looked like he was wearing a collar, while Lay looks out of the ordinary. Behind the Demon Sword Tournament, existence and conspiracy are one.

Characters
In order of appearance:

Summary
Anos easily defeats Krut which angers Emilia. This is followed by Lay winning his match. Backstage, Anos and Lay confront each other where Anos notices something is wrong. After he wins his next match, Anos gives his mother his sword. He and Misa then head to the hospital. There, they meet Lay's adoptive mother who has Spirit disease. She reveals Lay is being controlled by the Royalists. Afterward, Misa volunteers to help her. Meanwhile, Emilia confronts Anos's mother and their Unitarian classmates. She assaults them with magic to destroy the sword, but the Unitarians use magic to protect Anos’ mother, at the cost of getting severely burned. When Anos arrives, he freezes Emilia then heals all the girls and his mother. Anos asks each girl their name and expresses his thanks to how he is indebted to them for protecting his mother. He angrily teleports Emilia to the Arena where he stabs her with a sword and gets her to acknowledge that he is the true Demon King of Tyranny, then he kills her. He then resurrects her as a hybrid to torture her for her prejudice-fueled sins and puts a curse on her so that should she die by her own hands, she will always be resurrected as a hybrid. Back at the hospital, Lay stops Misa to protect her life force. He then has a conversation with his adoptive mother where she tells him to live his life the way he wants to. Lay leaves before Anos can return. The next day, Anos and Lay face each other in the finals.

Anime Differences

 * The part where Anos tells Emilia that after being stabbed by his demon sword, her body will become a breeding ground for poisonous worms that become more painful as they grow and eat her insides, is omitted.