In this time and space background, the world is called Mster, and seven types of ethnic groups once existed in this world. The top five ethnic groups are the gods, demons, elves, Taku, and humans. The Gods and the Demons are the two dominant ethnic groups in this world. They have powerful power and jointly maintain and govern the peace of Mster; the Elfs belong to the lower part of the Gods, and the Elfs have been loyal to the Gods for generations; the Taku are the warriors and first defenders of this world, and they are not Loyal to the demons or gods, but only to this world; the human race is the most common ethnic group in Mster. They do not have the power of the other four races and only play the role of subjects. However, as the most populous race, they are protected and support their rulers. The other two groups no longer exist due to their own reasons, but no one knows the secret of their disappearance. Perhaps those who know are only willing to treat it as an eternal secret. . . . .
This is the current pattern of Mster in this world. It has been going on for thousands of years. It is harmonious, peaceful, comfortable and beautiful. Every ethnic group is doing the duties and obligations they should perform and enjoying the rights they deserve. However, they do not know that the real Mster is about to begin. . . . . . . . . .