yizumi, houkaiseki riko, ikariya sakurako, real intention, real intention 2, 2girls, age difference, bdsm, black hair, blue eyes, blue hair, blush, bondage, bound, bound together, breasts, chain, chain leash, collar, female focus, glasses, leash, linked collar, long hair, looking at viewer, multiple girls, pantyhose, school uniform, serafuku, short hair, shy, skirt, teacher, teacher and student, yuri