Doraemon: What am I for Momotaro

For a summer project, Nobita is assigned to research his town's history. With Doraemon's help, they use a "time camera" to take pictures of local landmarks from different eras. The final photo shocks them-it shows the legendary Japanese hero Momotaro hauling a cart full of treasure. Later, Nobita's mother meets a foreign visitor who shows the kids a small, lifelike image of someone dressed as a samurai. The figure looks identical to Momotaro. The man explains he inherited the picture from his ancestors and came to Japan to uncover its true origins. Now convinced Momotaro might have been real, Nobita, Doraemon, Shizuka, Takeshi, and Suneo travel back in time to unravel the mystery.