Create an adorable and cute chibi-style character of A boy with brown hair in white karate outfit, striking a fighting pose against a black background. The character should have large expressive eyes that radiates joy while wearing his traditional Gi. He has short hair and is holding the belt on one side. His stance showcases strength as he stands ready for action. Render the scene in high resolution with a focus on capturing intricate details to bring out its charm and cuteness.