Toei's CEO Shinichiro Shirakura had released a Limited Edition Kamen Rider Den-O Novel which focuses on Deneb. The title of this Novel is "Kamen Rider Den-O: Deneb Kanjinchou". Kanjinchou is Japanese for Kabuki dance drama. The synopsis of the novel says that "Yuuto Sakurai / Kamen Rider Zeronos and Deneb are going on a Joburney of Time. Will Deneb be able to make Yuuto eat Shiitake?".
Well it looks like this novel will focus on only one topic. Deneb's thought of making Yuuto eat Shiitake which he hates to eat.
Booking started and ended on September 29th and the release date is November 30.