Kamen Rider Season 31 Episode 4
Because of That Opened Book
Ryou wonders why Touma is so obsessed with keeping promises as they try to figure out how to save Sora.
Guest Stars
Junji Majima
Hanzaki Megiddo (voice)
Reika Saiki
Fighting Fairy
Koki Uchiyama
Desast (voice)
Banka Tenta
Sora Ogami