Dorami-chan: Wow, The Kid Gang of Bandits / The☆Doraemons: Strange, Sweets, Strange? / Doraemon: Nobita's the Night Before a Wedding ...

Acting as a prequel, this short subject shows the life of Doraemon before traveling to the 20th century: how he was made, how he was partially broken, how he lost his ears, how he met the Nobi ...