Doraemon is sent back in time by Nobita Nobi's great-great grandson Sewashi to improve Nobita's circumstances so that his descendants may enjoy a better future. In the original time-line, Nobita experienced nothing but misery and misfortune manifested in the form of poor marks and grades, physical disasters, and bullying throughout his life. This culminates in the burning down of a future business he set up which leaves his family line beset with financial problems. In order to alter history and better the Nobi family's fortunes, Sewashi sent him a robot called Doraemon.
Nobita got a zero on his paper and is afraid of telling his mom the truth. So Doraemon gets out the Guiding Machine gadget which produces a fortune telling him to wait till 7:00 pm to tell mom.
The episode begins with Nobita getting yelled at by his mom and dad. Their expectations and reality causes Nobita to believe that he was picked up or adopted. Nobita and Doraemon go back to the past to the day that Nobita was born. Nobita realizes the dreams and aspirations that his parents hold for him and it causes him to study.
After Suneo and Nobita argue about the weather of the next day, Doraemon gives him a gadget that controls the weather.
With a Moving Arrow and Bow, Doraemon helps Nobita place targets at various locations so going around would be a breeze. Gian and Suneo steal an arrow from Doraemon and Nobita, but a dog moves the destination target to a canal causing them to fall into it.
Doraemon produces a small thunder cloud to cure Nobita of his fear of thunder. This done, Nobita uses it to shock people.
Nobita leaves a photo album on the floor. The book brought nostalgia to Nobita's mother and she recalled a story about a precious diamond ring that was passed down in their family, but was stolen by two boys. Nobita and Doraemon go back in time to stop the robbers. The diamond ring turned out to be plastic and was meant for Nobita's mom to be a lesson.
Doraemon and Nobita use a broadcast mirror to advertise a small sweet shop. At first, the advertisement fails to attract customers. But later, a huge crowd gets attracted to the sweet shop.
Nobita accidentally makes voodoo dolls of Doraemon and his parents using the camera and they fall into the hands of two rough girls.
The episode starts with Nobita running into Doraemon and asking him for a tool to help him study for his examinations that takes place tomorrow. Doraemon gives him some Memory Bread which Nobita eats and understands the work. Later, he relaxed and ate desserts until he became full, but Doraemon forces him to eats extra memory bread. The episode ends with Nobita vomiting and re-eating memory bread from the start the very next day. Later remade as "Copying Toast" in 1992.
The episode starts with Nobita getting home and wanting to go to Shizuka's house to play, but is stopped by Doraemon. He then open a book and tells Nobita that if he goes out, he will get in hospital because he will be hit by a truck. After persuasion by Shizuka, Doraemon goes outside with Nobita and uses a "future mirror" to see what will happen to them in 10 seconds time. Eventually, after near-accidents, they make it there but when he opens the door he gets hit by a toy truck on the head. The episode ends with Nobita laughing with Doraemon. First use of flying hats.
Doraemon and Nobita's first time travel. They get into a drawer which leads to them travelling on a time machine and end up ten billion years in the past. After shrinking one dinosaur, Doraemon cannot find his gun but they manage to escape the second one, with Nobita leaving his glasses behind, which are found in the present time, to the amazement of scientists.
Nobita and Doraemon continue their rescue attempt.
Nobita cannot go out so Doraemon produces some magic paper that makes paper copies of anything including Nobita. However, as soon as they leave, a wind blows away the paper figure of Nobita which then has a number of adventures. Remade as The Nobita that Nobita Never Knew in the 2005 series.
Nobita wants a new bike but his parents cannot afford it, then he comes across a catalog from 2087 and orders and gets many things, not realizing that they have to be paid for.
Nobita wants many toys but can't afford them. Using Doraemon's magic mirror, what he holds up to it is copied, so he borrows toys and copies them. But Nobita also gets copied himself producing a mischievous Nobita.
Nobita's parents consider moving, so he and Doraemon convince them to move to an ancient castle owned by a beautiful woman. When she mysteriously disappears, they must rescue her.
Doraemon unveils his newest device, the Love Love Parasol.
Nobita gets called a liar by his mom when she believes him to be hiding his recent exam. Nobita complains to Doraemon and exchanges his snacks for a snail shell that protects him from his surroundings. Shizuka shows up near the end and returns a journal that holds his exam grade. Nobita's mom apologizes, but is met with Nobita's demands... until she asks him for his grade.
Nobita cannot swim so Doraemon uses a powder on him which makes him able to swim through the ground or anything else solid as though it were water, so he can learn to swim.
Doraemon produces a mini submarine which makes many jumps into all sorts of liquids including a toilet bowl on its way to the sea.
Nobita tries to get the better of bully Gian using Doraemon's things from the future, but Gian has things from the future too and gets the better of him.