Doraemon strips away the gadgets and comedy routines to do something it almost never does: let Nobita sit with grief that doesn't have a fix button. You're watching a kid try to exist in a time where his grandmother is still alive, but she has no idea who he is, and that gap between wanting to reach her and being invisible to her is the whole story. The movie knows that some of the best moments we have with people are the ones we only understand after they're gone, and it lets you feel that loss without turning it into a lesson.

Nobita still misses his grandmother, who died a few years ago. To give him the chance to see her one more time, Doraemon brings him back into the past. The trip is not simple. They run into the younger versions of Nobita and his friends, and Nobita's mother, still young herself, has no idea who Nobita or Doraemon are. A fantasy comedy film about a boy's visit to the family he remembers.