Doraemon the Movie 2021: Nobita's Space War (Little Star Wars)

Nobita's adventure takes an unexpected turn when he discovers a tiny rocket that releases Papi, a miniature alien from the planet Pirika. Fleeing from the menacing PCIA army, Papi finds himself in a world he never expected. Initially bewildered by his small stature, Nobita and his friends quickly adapt with the help of Doraemon's "Small Light" gadget, allowing them to join in on the fun. However, their playful interactions are soon interrupted by the arrival of a massive whale-shaped battleship, sent to reclaim Papi.

As the situation escalates, Papi grapples with feelings of guilt for endangering his new friends. Determined to confront the PCIA army, he rallies Nobita and the gang to embark on an interstellar journey back to Pirika. Together, they must navigate the challenges ahead, combining their courage and ingenuity to protect both Papi and his home planet from impending danger.