Two additional stories focused on Zodiarc's protagonists Chapter 1. "Arcana Gakuen" is a prequel drawing school life before the main events. Chapter 2. "Mephistopheles" is about main character getting involved in an incident of Mephistopheles waking up every night.

Two additional stories focused on Zodiarc's protagonists Chapter 1. "Arcana Gakuen" is a prequel drawing school life before the main events. Chapter 2. "Mephistopheles" is about main character getting involved in an incident of Mephistopheles waking up every night.