Kamen Rider 555 Kamen Rider Faiz Naoya Kaido: Mitsuru Karahashi Keitaro Kikuchi: Ken Mizoroki Double sign on rare Kira cards Trading cards also have a low inclusion rate for Kira cards, but Ken Mizoroki has retired from the entertainment industry, so a signature is now difficult and rare. This is a double signature from Mitsuru Karahashi and Ken Mizoroki. I don't smoke. I don't have any pets. Thank you.