The world seems on the peak of its biological and technological advances yet to crumble into a dark beginning, The year 9900 initiated its very first human biological experiment to enter the state of a Super Human species to surpass limits. The experiment's successful 2 candidates are called 001 and 002.

Within a span of six months, scientist mass production of Superhuman reached the 50th patient, but seven people failed with two deaths, four contained, and a single escapee, patient 009 the crazed entity that escaped the laboratory learned to kill and reproduce.

Year 9902, 38 percent of the population is a SuperHuman with enhanced agility, endurance, durability, strength, and minds but yet faced a problem of multiple people disappearing. Investigated by the Aces (the highest rank of combatant superhuman) discovered a trail of mass murder in multiple cities, which concluded into the 009 activity and is called a Demon for genocide.

The mighty Superhumans began its downfall lacking the power to escape the Demons Massacre and turned the world into pools of blood as humanity's population barely survives with very few Superhuman left and is now back at the medieval era with demons hunting for centuries, no history recorded and no tales to tell for humans to remember. As demons dwell within the mysteries of the world and humans survive in its current Medieval era having only the Royalties (Superhumans) lineage as its only hope.