tape gag, 1girl, solo, breasts, looking at viewer, short hair, large breasts, brown hair, green eyes, swimsuit, lying, day, water, one-piece swimsuit, headgear, ocean, on side, arms behind back, bound, bdsm, bondage, rope, restrained, competition swimsuit, gag, flipped hair, gagged, shibari, tape, bound legs, improvised gag, shibari over clothes, cloth gag, mutsu (kancolle)