Young Asian man 20 years old , (ทรงผมแบบ Crew Cut: 1.3 ), black hair

young Asian man 20 years old , (ทรงผมแบบ Crew Cut: 1.3 ), black hair, short hair details, burly handsome man ,naked ,White swimming trunks with large bulges, strong, handsome, outdoor, Take a steam shower., hot spring, Onsen, sweat, look at the audience., depth of field, Bokeh, Detailed background, Detailed light, diffuse natural sunlight, Skin glows naturally., symmetrical eyes, Big smile