The Demon Lord Regains His Memories of His Previous Life and Becomes UnrivaledTensei Shita Dai Maou, Chikyuu ni Shutsugen Shita Dungeon o Tsukutta no ga Zense no Jibun de aru koto o Omoidasu.: Maou Jidai no Chishiki to Keiken de Matatakuma ni Sekai Saikyou ni natte Musou Shimasu!; 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！〜; 転生した大魔王、地球に出現したダンジョンを作り出す; Tensei Shita Dai Maou, Chikyuu ni Shutsugen Shita Dungeon o Tsukuridasu; 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!; Sang Raja Iblis yang Bereinkarnasi, Menciptakan Dungeon yang Muncul di Bumi