2boys, abs, black_hair, bodysuit, feet, full_body, hand_on_another's_shoulder, holding, holding_surfboard, kim_dokja, looking_at_another, male_focus, male_swimwear, multiple_boys, muscular, muscular_male, omniscient_reader's_viewpoint, onlyraii, pectorals, scar, scar_on_arm, scar_on_chest, short_hair, surfboard, topless_male, waves, white_background, yoo_joonghyuk