Devil Summoner: Kuzunoha Raidou tai Shibito Ekishi (デビルサマナー 葛葉ライドウ 対 死人驛使, Debiru Samanaa Kuzunoha Raidou tai Shibito Ekishi)?, is a prequel novel that takes place before Devil Summoner: Raidou Kuzunoha vs. The Soulless Army, shortly after Raidou Kuzunoha the XIV came to the capital.
- Raidou Kuzunoha the XIV - The protagonist, named Jōhei (錠平). A devil summoner who wields the blade of Muramasa, he is also a student of Yumizuki High School.
- Shouhei Narumi - The head of the Narumi Detective Agency.
- Tae Asakura - A journalist for the newspaper.
- Kyouji Kuzunoha the First - A ruthless devil summoner who does Yatagarasu's dirty work.
- Dormarth - One of Raidou Kuzunoha's demon allies.