An anime-style illustration of a cute boy in a white karate outfit with a black belt and green eyes, ready to fight on the right side, isolated against a pure black background. The character should have short brown hair and a bright blue skin color, his expression is serious but happy. He’s doing a one arm kick pose. Make sure that he looks lively and cheerful. Use bold colors for contrast, and add details like using the style of a virtual idol cartoon style.