Twitterati get emotional as Nobita finally marries Shizuka in 'Stand by Me Doraemon 2' Doraemon is a male robotic cat that travels back in time from the 22nd century to aid a preteen boy named Nobita Nobi. One of Indiaâs most-watched cartoons for over a decade has been âDoraemonâ, a fictional character in the Japanese manga and anime series created by Fujiko Fujio. Doraemon is a male robotic cat that travels back in time from the 22nd century to aid a preteen boy named Nobita Nobi. For those who have grown up watching the episodes of this series have noticed how Nobita cares for his friend Shizuka Minamoto.