Anime, anime screencap, anime coloring, 1male only, 1boy only, male focus, one male character only, single male character only, single illustration only, bishonen, handsome, attractive, cute, Setsuna Sanzenkai, black hair, brown eyes, light blue collared shirt, open shirt, white undershirt, short sleeves, yellow shorts, sandals, full body shot, island, nature, outside a cave, cave entrance background