Gian

Gian is a child who is overweight and has black hair. He is a bully in the anime 2112: The Birth of Doraemon. Gian is always picking on Nobita and making his life miserable. He is also very strong and can easily beat up Nobita. However, Gian does have a good heart and he does care about Nobita. He just doesn't know how to show it. One day, Gian saves Nobita from a group of bullies. Nobita is grateful to Gian for saving him and he realizes that Gian is not a bad person after all. Gian and Nobita become friends and they start to hang out together. Gian learns to be less of a bully and Nobita learns to stand up for himself. They both become better people because of their friendship.