Kamen Rider Ryuki
"OOO" is written by Yasuko Kobayashi, known for the screenplays of "Seijuu Sentai Gingaman", "Mirai Sentai Timeranger", "Kamen Rider Ryuki", "Den-O", and "Samurai Sentai Shinkenger". The creature designers are Yutaka Izubuchi, known for his work on the Lords in "Kamen Rider Agito", and Tamotsu Shinohara, known for his work on the Mirror Monsters of "Ryuki", the Orphnoch of "Kamen Rider 555", and the Fangires of "Kamen Rider Kiva".