1girl, 2021, arms_behind_back, bad_pixiv_id, bare_shoulders, blue_eyes, breasts, brown_hair, cleavage, closed_mouth, collarbone, day, fujita, gridman_universe, large_breasts, looking_at_viewer, mujina, navel, outdoors, partially_submerged, pool, short_hair, sitting, solo, ssss.dynazenon, water