1girl, barefoot, bikini, blue_bikini, blue_eyes, blush, boku_wa_tomodachi_ga_sukunai, breasts, butterfly_hair_ornament, collarbone, covered_nipples, crossed_bangs, dark_background, groin, hair_between_eyes, hair_ornament, huge_breasts, kashiwazaki_sena, kuroneko_pantsu, long_hair, looking_at_viewer, navel, open_mouth, sanpaku, sitting, skindentation, solo, string_bikini, swimsuit