1girl, d, aqua_eyes, aqua_pupils, bad_pixiv_id, bare_arms, bare_legs, bare_shoulders, barefoot, beach, bikini, blonde_hair, blue_bikini, boku_wa_tomodachi_ga_sukunai, breasts, butterfly_hair_ornament, cleavage, collarbone, fang, fingernails, footprints, front-tie_bikini_top, front-tie_top, full_body, hair_ornament, hand_up, kashiwazaki_sena, long_hair, looking_at_viewer, medium_breasts, navel, open_mouth, sand, shading_eyes, shadow, side-tie_bikini_bottom, smile, solo, swimsuit, toenails, water, zawabug