2boys, d, abs, achilles_(fate), achilles_(fearless_diver)_(fate), anklet, barefoot, bracelet, cloud, copyright_notice, cowboy_shot, day, fate/grand_order, fate_(series), full_body, green_hair, grey_hair, hair_between_eyes, hair_over_one_eye, holding, holding_surfboard, jewelry, looking_to_the_side, male_focus, male_swimwear, multicolored_hair, multiple_boys, ocean, odysseus_(fate), red_hair, short_hair, smile, streaked_hair, surfboard, surfing, swim_trunks, teeth, toned, toned_male, topless_male, undercut, upper_teeth_only, wading, wet, wristband, yellow_eyes, youneko