I hope the synopsis will help you guys understand the comic.
This is the one with video.
The Optimistic Ending
The first and the more optimistic ending was made public by Nobuo Sato several years ago. Doraemon's battery power would run out and Nobita was given a choice between replacing the battery inside Doraemon, which would cause it to reset and lose all memory of Nobita and their adventures or await a competent robotics technician who would be able to resurrect the cat-robot one day. Nobita swore that very day to work hard in school, graduate with honours and to become that robotics technician. He then later successfully resurrected Doraemon in the future as a robotics professor, became successful as an AI developer and then lived happily ever after, thus relieving his progeny of the financial burdens that caused Doraemon to be sent to his space-time in the first place.
The Ones without video
The Pessimistic Ending
The second, more pessimistic ending suggests that Nobita Nobi was suffering from a mental disability and that all the characters (including Doraemon) are simply his delusion. In real life, Nobita would be a sick and dying little boy who imagined the entire series on his sickbed to help him ease his pain and depression.
The Third Ending
The third ending idea suggests Nobita fell and hit his head on a rock. He fell into a deep coma, and eventually into a semi-vegetative state. To raise money for an operation to safe Nobita, Doraemon sold every single one of his tools and devices in his four-dimentional pocket. However, whilst enough money was raised for it to happen, the operation failed. Doraemon at that point has one gadget that he didn't sell and decided to use it as a last resort. He used it to enable Nobita to go wherever he wanted, whichever time era he wished to go and in the end, the very place Nobita wanted to go was heaven.
Hope all visitor like it... ^^
