Instant Savior

"First Lost" - The first step of the demon race's invasion of mankind caused a tragedy, causing a small village to disappear from the map. The boy's neighbors and loved ones were slaughtered by the demon army, and only one teenager survived.After ten years, the young man - Nine, who survived the disaster, entered the demon territory and knelt before the beautiful demon queen to ask for help, hoping to avenge his hometown and family."- Your Majesty, the Demon Queen, please allow me to do my best for you?"From then on, Nine soiled his hands, fighting against mankind under the demon queen, smiling crookedly and bathing in blood, as if forgetting the hatred of the past.This is the revenge tragedy of a weak human. With a love that stakes his life and bottomless madness, he will invade and destroy the demon race that has taken everything, dragging them into destruction...