Kamen Rider Senior Chat Group

After traveling through the world of Build and becoming a test subject in Faust, Onoue Takumi was a little panicked at first, but he suddenly discovered that there was a chat group in his consciousness...

Rick, the undead human ancestor of Hearts 2, Den-O's future brother-in-law, etc...

Two Kamen Rider fan fiction books with over one million words have been completed.