1girl, amagami-san_chi_no_enmusubi, arm_under_breasts, bikini, blush, breasts, cleavage, collarbone, frilled_bikini, frills, grabbing_own_arm, grass, hair_bun, hair_intakes, hose, large_breasts, looking_at_viewer, monochrome, open_mouth, outdoors, partially_submerged, ryopa, side-tie_bikini_bottom, sidelocks, signature, solo, swimsuit, wading_pool, wavy_mouth