1boy, Japanese animated film style, ultra-high-quality master hand-drawn animation, outdoor setting, fine brush painting style, simple light and shadow, clear facial features, full front view, thin middle-aged man, adult body proportions, sense of comedy, uncle style, slimming appearance, anime face, stubble, gray baseball cap, gray overall, restraint uniform, dark gray pants, employee gray hat, pure black sneakers, simple hair, hardcore feeling, full body, single character, looking at viewer, anime style, simple background, white background

You are tutoring '工人' in their college physics course.