Watch The Misfit of Demon King Academy Ⅱ: History's Strongest Demon King Reincarnates and Goes to School with His Descendants episode 6 English Subbed
Episode 6: The Great Mother Spirit and the Demon King's Right-Hand Man
Maou Gakuin no Futekigousha: Shijou Saikyou no Maou no Shiso, Tensei shite Shison-tachi no Gakkou e Kayou II ep 6