azasuke, shibasaki asako, toshokan sensou, looking away, 00s, 1girl, arms behind back, artist name, assisted exposure, bdsm, black hair, bondage, bound, brown eyes, cellphone, chair, frogtie, gradient background, grey background, high heels, long hair, necktie, office chair, office lady, panties, partially visible vulva, phone, pumps, rope, signature, spread legs, sweat, sweatdrop, swivel chair, underwear, white background, white panties