Goodbye, Nobita! Doraemon Goes Back To The Future

Nobita uses one of Doraemon's gadget to hide all his test papers. However, all the papers fly to the streets when they are told to run away when they hear Mum coming up, and hence Nobita puts the blame onto Doraemon. They quarrel. Doraemon’s younger sister, Dorami, falls from the ceiling and onto Doraemon when she sets her exit from such a high area, and is given a warning. Doraemon and Dorami are siblings, since they share the oil from the same can. After a day of introducing Dorami to Nobita’s parents and friends, Doraemon tells her about what happened about Nobita and she learns they are still quarrelling.

The next day, Doraemon wakes up late and finds out that Dorami had already waked Nobita up for school. He also learns that a concerned Sewashi had sent her to help her brother take care of Nobita. Mum is amazed when she finds out that Dorami had helped her with the laundry. Still concerned about Nobita, Doraemon flies to the school, with Dorami tagging along. They see Nobita lagging behind at the track and Dorami secretly puts a Self Confidence Helmet on Nobita to muster up courage and finish the sprint. Assured, Doraemon leaves Dorami to take care of Nobita and returns home, but receives a call from Sewashi, telling him to return back to the future.

After Doraemon treats Dorami to melon bread, her favourite food, she helps Mum to wash the dishes, but encounters a cockroach and is frightened. Doraemon rushes and finds out what happened. Still concerned, Doraemon rushes to track Nobita’s whereabouts, but fails to prevent him from any danger. Nobita blames Doraemon again. Nobita returns home and takes a nap, but wakes up a few seconds later and proceeds to do the homework. Dorami assists Nobita in doing the homework. She energizes him with a Speedwinder and he takes Dorami out to play. Feeling that Nobita would be better with Dorami by his side, Doraemon decides to leave his sister to take care of Nobita while he follows Sewashi back to the future, leaving Nobita devastated.

While warming up for baseball practice one day, an out-of-sorts Nobita reveals that he has done his homework in advance, angering Gian and Suneo. He returns home to find Dorami and Shizuka doing origami. When requested for a gadget that allows him to avoid Gian and Suneo for a while, Dorami reveals that there is no such gadget, but suggests Nobita can make one for himself using the Inventing Machine. He makes a Cockroach Hat that allows him to escape when chased by bad guys, and successfully runs away from Gian and Suneo. He makes another gadget for Shizuka to grow flowers all-year round, and receives some requests from other classmates to make new gadgets. Still, Nobita feels despondent.

Dorami returns to the future the next day and finds Doraemon feeling unwell, too, and believes that Nobita should be taken care of Doraemon. She returns to the present, but does not reveal to Nobita that Doraemon is sick. Suneo and Gian proceed to Nobita’s house one after another to request for a gadget to allow Suneo to defend bullying, and to allow Gian to fight against opponents, respectively, and both fight head-on. Unable to stop the fight, Dorami communicates with Doraemon through Time TV to ask for his help. Doraemon rushes to the present to bring Suneo and Gian’s mothers to send them home. Nobita is reunited with Doraemon, putting Sewashi and Dorami’s minds at ease. Nobita gives Doraemon a birthday present, but it turns out to be a mice-in-the-box, and Nobita laughs at his fear of mice, much to Doraemon‘s Anger and Sewashi and Dorami watch them hitting themselves on TV as the episode ends.