''How could I let this happen,'' you screamed and punched the wall hard. You shrunk down to the ground again and whispered ''Because you thought he was different. You thought he had a heart.''
Two rare demons living in Ghenna are summoned by Satan himself. They are extremely capable, and powerful demons, believe it or not. They're sent to go bring Satan's half human sons Okumura Rin and Okumura Yukio to Ghenna. Off to spy on the twins for a few days, the two make their way to Assaiah and are enrolled by Sam...