In a world where angels and demons coexist, religion is the bridge between humans and supernatural forces. Oriphan in the popular land is such a mysterious and sacred place, and there lives a man named Sinclair, who is respectfully called "the priest".
Sinclair was once the most powerful priest in the Holy City until he was cursed to lose his memory during a battle with the demon Satan. Every night, fragmented dreams troubled him, as if something important had disappeared from his life.
One night, while handling a murder case, he accidentally discovered Seri. Serui, the son of the demon Satan, carries his father's powerful magic power, but is regarded as a pawn by him. He had a strong sense of familiarity with Sinclair, so he forced him to stay.
Solving crimes and fighting demons, Sinclair and Seri's lives are busy and fulfilling. When a serial killer appears who kills people with a mysterious magic circle, the two of them really start to fight side by side. They searched for mysterious totems and interpreted ancient magic circles. At the same time, Serui continued to tease and test Sinclair, pushing their relationship into a complicated abyss.
In the subsequent cases, their tacit cooperation and mutual redemption gave them subtle emotions. However, after realizing his increasingly strong feelings for Seri, Sinclair became more and more confused. What was hidden in his memory?
Intention: None