After the Demon Lord Sadama VII came to the throne, it used the power of the Heart of Mara to re-grow the Demon Empire that was at war with the human race and the Holy Domain. It planned to destroy the Human Race and conquer the Holy Domain at any time. They plotted this plan and paid a crazy price for it. This plan was called "None". The Human Race Carter Kyle, the guard captain facing the most important city in the Demon Realm - Carosa City, captured a demon spy. Through interrogation, he learned about the plan, but the details were unclear... At this time, the ominous omen of the "blood moon" appeared over the human race. Disaster was coming, where to go...
