Cool Devices Stifiably famous as one of the most extreme adult anime series ever produced, the Cool Devices series features a fetish for virtually every predilection, from S&M to B&D to incest. Some of the greatest talents in contemporary adult anime including Mon Mon (illustrator extraordinaire), Hiroyuki Utatane (Countdown), and Yasuomi Umetsu (Kite) helped create this series of 11 self-contained erotic stories. Art style, story and theme vary from episode to episode, but the general tone of hardcore erotica for fans of kink and the extreme remains constant throughout.