Doraemon: What am I for Momotaro

For his summer homework, Nobita has to study the history of his hometown. With Doraemon's help, they use a "time camera" to snap pictures of local landmarks from different eras. The final photo shocks them-it shows the legendary Japanese figure 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 person in the picture looks just like Momotaro. The visitor inherited the image from his ancestors and has come to Japan to uncover its origins. Convinced Momotaro might have been real, Nobita teams up with Doraemon, Shizuka, Takeshi, and Suneo to travel back in time and solve the mystery.