Miyu Kotohara performing in Iron Crimson 4 Miyu Kotohara. (dasd00300, DASD-300). This movie is about Ropes & Ties, Humiliation, Gal, BDSM, Featured Actress, Training, Hi-Def: VIDEO ON DEMAND: ADULT MOVIES. This movie was released in Japan on July 19, 2015. Movie duration is 118 min.