inoue yoshihisa, akiyama mio, hirasawa ui, hirasawa yui, tainaka ritsu, k-on!, 00s, 4girls, alternate hairstyle, arms behind back, bdsm, black eyes, black hair, bondage, bound, bound legs, box tie, breast bondage, breasts, brown eyes, brown hair, bullying, crotch rope, crotch rub, hair ornament, hairband, hairclip, kikkou shibari, long hair, multiple girls, panties, pantyhose, ponytail, pussy juice, school uniform, shibari, shibari over clothes, short hair, striped clothes, striped panties, underwear, yuri