1girl, black_jacket, blue_hair, competition_swimsuit, covered_navel, cropped_jacket, demon_tail, groin, holding, holding_hose, horns, hose, jacket, long_sleeves, looking_at_viewer, lying, naka1379, on_back, one-piece_swimsuit, one_eye_closed, open_mouth, original, short_hair, smile, soaking_feet, solo, swimsuit, tail, water, wet, wet_clothes, white_one-piece_swimsuit, yellow_eyes