Here is some information about the story of Doraemon.

Doraemon came to this world on December 1st, 1969. He was created by Fujimoto Hiroshi and Motoo Akido. Unfortunately, Fujimoto has passed away. There are hundreds of manga volumes, and a few movies. Doraemon is a story about a robotic cat sent back to the past to save a kid called Nobita Nobi from poverty in the future. That was the start of one of the greatest anime ever. Even though the drawing may not be as "Cool" as some of the other animes, but believe me, the contents is so good, it will keep you hooked on for the rest of your life.