4boys, black_hair, blonde_hair, blunt_bangs, blush, brothers, bucket, closed_eyes, closed_mouth, ekubo_(mob_psycho_100), hanazawa_teruki, kageyama_ritsu, kageyama_shigeo, knees_up, looking_at_another, looking_to_the_side, male_focus, mastectomy_scar, mob_psycho_100, mp100days, multiple_boys, nude, onsen, open_mouth, outdoors, partially_submerged, rock, scar, scar_on_chest, short_hair, siblings, smile, spirit, towel, towel_on_head, water, wooden_bucket