zero (kof), the king of fighters, highres, 1boy, abs, anus, bara, black socks, brown eyes, brown hair, chain, chain bracelet, completely nude, dark-skinned male, dark skin, erection, facial hair, feet out of frame, hair slicked back, laoyanzi, large pectorals, looking back, lying, male focus, mature male, muscular, muscular male, mustache, nipples, nude, on stomach, pectorals, short hair, socks, solo, thick eyebrows, v-shaped eyebrows