A.D.2378, Human being over the world has set up a centralized government after the Sixth World War. The group of people having yellow skin dominates the 80 percent of resources by its huge quantity and centuries-old civilization. The merge of culture caused the merge of nation, since that the word ?Race? was forgot. Technology was rapidly developed to a high level never reached before at the final stage of the World War and a new special infantry weapon replaced all traditional ones which can easily destroy targets inside the highest level of atmosphere. Filled with proud and fear, Veteran survived always mentioned some kind of cruel killer who slay poor guys hiding in tank and fort as kid playing with toy.

The technology caused the merge of civilization and created a flourish society of which everyone is proud, but on the other hand, it ruined other races during an almost imperceptible space of time. That is a bloody art.

Bard sings:
My holy land, God erased your name in colorful lights, being a mistake, back to the origination of life.
The archon begin to do a secret research at the end of war .To eliminate the sins of human, to bring world peace forever. They make an experiment upon those - Cruel Killer.