Who is the big bear?

The correct one should be Nobita, Nobita for short, the hero in the Japanese cartoon Doraemon and its derivative works.

Nobita's weaknesses are cowardice, timidity and forgetfulness. Advantages are responsibility, kindness and integrity. It is a kind of "sorrow for the misfortune of others and praying for the happiness of others." "Doraemon was sent by Nobuo's great-grandson Nobuo Shi Xiu to help him, tap his potential and reverse his unfortunate fate.

Introduction to the story:

Doraemon is a blue robot cat in the 22nd century, which is managed by Shi Xiu, Nobita's great-grandson. When he came to Daxiong Primary School through the time machine, he wanted to change his fate and turn Daxiong into a useful person.

Nobita and Doraemon became good friends. Doraemon has a magical four-dimensional pocket, and the props in it can be very strange and powerful. Every time Daxiong needs help, Doraemon will use her own props to help Daxiong, but it seems that it will be self-defeating every time.