nimu, ryukishi07, belphegor (umineko), no naku koro ni (series), umineko no naku koro ni, highres, 1girl, ball gag, bdsm, between breasts, black hair, bondage, bound, breasts, clothes between breasts, female focus, gag, gagged, gagging, large breasts, necktie, necktie between breasts, nipples, open clothes, open shirt, pink necktie, red eyes, saliva, shirt, simple background, solo, solo focus, tears, wiffle gag