This special takes place during the events of Kamen Rider Saber episode 9. While investigating a Megid incident, Ogami leaves Ren to follow his instinct about Sophia. Dejected, Ren has an encounter with Desast that is more than it seems.
Hiroaki Oka
Tetsuo Daishinji / Kamen Rider Slash
Yuki Ikushima
Ryo Ogami / Kamen Rider Buster
Koki Uchiyama
Desast (voice)
Eiji Togashi
Ren Akamichi / Kamen Rider Kenzan
Ryou Aoki
Kento Fukamiya / Kamen Rider Espada
Rina Chinen
Sophia
Hiroyuki Hirayama
Kamen Rider Calibur (voice)
Takaya Yamaguchi
Rintaro Shinda / Kamen Rider Blades
Asuka Kawazu
Mei Sudo
Kōji Saikawa
Zoous
Masashi Mikami
Kenshin Nagamine