1girl, o, alternate_costume, aris_(blue_archive), ass, back, barefoot, black_hair, blue_archive, blue_eyes, blush, breasts, competition_swimsuit, drain_(object), dutch_angle, feet, foot_out_of_frame, from_behind, hair_between_eyes, halo, indoors, kneepits, long_hair, looking_at_viewer, looking_back, one-piece_swimsuit, one_side_up, open_mouth, pool, poolside, shirosaba, sitting, small_breasts, soles, solo, swimsuit, thighs, toes, very_long_hair, water, wet, wet_clothes, wet_hair, wet_swimsuit, yokozuwari