STAND BY ME DORAEMON

The robotic cat was sent by a boy in the future to the present day to help the boy's hapless grandfather, Nobita. Doraemon, Nobita, and other children deal with everyday childhood issues, solve (and cause) problems with the gadgets in Doraemon's fourth-dimensional pocket, and embark on escapades through time and space. — Description from AniList community (anilist.co).