1girl, arms_note, assault_rifle, bare_shoulders, black_gloves, black_one-piece_swimsuit, brown_hair, bullpup, competition_swimsuit, covered_navel, dark-skinned_female, dark_skin, from_side, fukai_ryosuke, gloves, green_eyes, gun, hair_ornament, jacket, looking_at_viewer, magazine_(weapon), multiple_views, off_shoulder, one-piece_swimsuit, reference_sheet, rifle, short_hair, simple_background, submachine_gun, swimming_club_president_(fukai_ryousuke), swimsuit, swimsuit_under_clothes, thighhighs, toeless_legwear, weapon, weapon_focus