Doraemon Movie 33: Nobita no Himitsu Dougu Museum

Doraemon wakes to discover that the bell he has worn since childhood has vanished. The culprit is a mysterious thief from the 22nd century known as Kaito Deluxe, and the only clue points Nobita and the others toward the vast Secret Gadget Museum, where legendary inventions from across history are displayed.

Inside the museum, every gallery offers another impossible device and another suspect, while the thief continues moving just beyond their reach. Doraemon's missing bell may look insignificant among the treasures, but it carries memories he refuses to lose. Solving the theft means uncovering a secret hidden within the museum itself before Kaito Deluxe claims something far more dangerous than a bell.