This is just a brief summary:
In the distant future Angel, Humans and Fiends live among one another. Each races with their strength Angel with magic, Humans with technology and Fiends with strength are trying to survive the menaces known as Sluagh or Sightless one . The Sluagh they are a group of Fiends who have lost control and are mindless monsters that its purpose is just to eat. The world leaders know they need champions to protect their people for that reason each one created a group of Warriors that will do the job. The Fiends created The Seven Nightmares, the Angel the Six Rings and the Humans Created Five Hunters Dojo. But one Hunter is unlike all the others a half human half Fiend causing a lot of attention At war with herself feared by all she is Diana Naraka our main character being what she is Berserkers are constantly attracted to he for he Fiend half putting in danger all close to her. She inherited the strength so she is the strongest human being and Hunter. Diana is traveling to Fiend kingdom to meet the leader of The Nightmares and ask him for help with he situation. Along the way, meeting people who can be around and help he.