Tired of being bullied by Gian and Suneo, Nobita asks Doraemon to show him an alternate world where he’s the neighborhood bully. But when Bully Nobita escapes into the real world, chaos ensues!

Doraemon and Nobita use the Date-Changing Chalk to travel to the past. Nobita even visits the future and meets his future self! When Tamako erases the chalk, Nobita uses the time machine to return home safely.