anime- The Hidden Dungeon Only I Can Enter ~Secretly Becoming World Strongest~ (Ore Dake Haireru Kakushi Dungeon ~Kossori Kitaete Sekai Saikyou~/The Hidden Dungeon Only I Can Enter ~Secretly Becoming World Strongest~), a Japanese Web Novel and Manga by Seto Meguru (Seto Meguru) and illustrated by Takehana Note (Takehana Note). Read it as it is a really funny and engaging harem isekai. Smh only if irl was one. #cute #anime #funnyanime #bestanime