ボクはしたたか君

The story takes place in the town of Ikasama and Osawagi Elementary School in Tokyo, when the super troublemaker, Ryuishi Shitaka, moves into town. He is a hardcore problem child who causes havoc in any class or wherever he goes. Most of the story is a slapstick action drama depicting his inexhaustible shenanigans. (Source: Wikipedia, translated)