Demon King Mismatched School ~The Founder of the Strongest Demon King in History, He Arrives at School as Descendants After Reincarnating~, Maoh Gakuin no Futekigousha, Maou Gakuin no Futekigousha ~Shijo Saikyou no Maou no Shiso, Tenseishite Shison-tachi no Gakkou e Kayou~, The Misfit of Demon King Academy: History's Strongest Demon King Reincarnates and Goes to School with His Descendants, The Unqualified Student at the Demon Lord Academy ~ The Strongest Demon Lord in History, the Founder, Reincarnates and Attends a School With His Descendants ~, 마왕학원의 부적합자~사상최강의 마왕의 시조, 전생해 자손의 학교에~, 王学院的不适合者 ～史上最强的魔王始祖、转生之后入学到子孙们的学校～, 魔王学院の不適合者 ～史上最強の魔王の始祖、転生して子孫たちの学校へ通う～