amiba00, hino rei, mizuno ami, sailor mars, sailor mercury, bishoujo senshi sailor moon, 1990s (style), 2girls, arms behind back, ball gag, bdsm, blue hair, bondage, boots, bound, bound ankles, bound legs, bound wrists, box tie, breast bondage, breasts, cleave gag, cloth gag, crotch rope, female focus, from side, gag, gagged, gloves, high heels, improvised gag, long hair, multiple girls, predicament bondage, purple hair, retro artstyle, rope, rope walking, shibari, shoes, short hair, tiara