The Demon Lord Regains His Memories of His Previous Life and Becomes UnrivaledTensei Shita Dai Maou, Chikyuu ni Shutsugen Shita Dungeon wo Tsukuridasu; 転生した大魔王、地球に出現したダンジョンを作り出す; 転生した大魔王、地球に出現したダンジョンを作ったのが前世の自分であることを思い出す。　〜魔王時代の知識と経験で瞬く間に世界最強になって無双します！〜; Tensei Shita Daimaou, Chikyuu ni Shutsugen Shita Dungeon o Tsukuridasu; Tensei Shita Daimaou, Chikyuu ni Shutsugen Shita Dungeon o Tsukuridasu: Maou Jidai no Chishiki to Keiken de Matataku Ma ni Sekai Saikyou ni Natte Musou Shimasu!; Tensei Shita Daimaou, Chikyuu ni Shutsugen Shita Dungeon wo Tsukuridasu: Maou Jidai no Chishiki to Keiken de Matataku Ma ni Sekai Saikyou ni Natte Musou Shimasu!; The Demon Lord Regains His Memories of His Previous Life and Becomes Unrivaled; The Reincarnated Great Demon King Remembers That It Was Him Who Created the Dungeons That Appeared on Earth; The Reincarnated Great Demon King Remembers That It Was Him Who Created the Dungeons That Appeared on Earth: Using His Knowledge and Experience from His Time as Demon King, He Becomes the Unrivaled Strongest in an Instant!