Humanity is at war with the evil Darkhi.
Those capable humans who have hidden in the shadows for hundreds of years only come forward when they are threatened. Some choose to share their knowledge with others in the hope that the world as a whole can win the war, while others retain their own abilities.
Quinn lost everything in the war, his home, his family, and the only thing he inherited was a book that he couldn't even open, but when the book was opened, Quinn was given a system that turned his entire life around. He completed one task after another, becoming more and more powerful, until one day the system gave him a task that he was not sure he could complete. "It's time to feed!" "You must drink human blood within 24 hours." "Your HP will continue to decrease until the mission is completed."
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
