A cartoon boy with a black hedgehog head, wearing an orange short-sleeved martial arts uniform, a blue belt around his waist, blue wristbands, and dragging a brown tail behind him. He peeks out from the edge of a gray wall on the right, gripping the edge with both hands, with most of his body hidden behind the wall, his left eye playfully squinted and his right eye wide open, mouth wide open displaying a brilliant smile. The left side of the image has a large pure white background, creating a simple composition. The overall style is characterized by strong lines, a stark contrast of light and dark, in a hand-drawn anime style with high color saturation that is full of dynamism and vitality.