He is the school bully. He and Suneo are always annoying Nobita. He loves reading manga and his grades are bad, but not as much as Nobita. He's always getting into trouble. He is very rough and a bad singer (although he believes that his voice is unique and requires other children to listen to his singing). He's usually called Gian and has a younger sister named Jaiko, who likes drawing manga. Takeshi always helps his friends when they are in trouble because on the inside he is actually very nice.