Ten years ago, the World Tree that safeguarded peace and order was targeted by the evil organization Zakum. The Human race led four other races, the brave warriors, intelligent magicians, agile archers, and sly thieves, in a battle against the Zakums. In the end, the World Tree activated its self‑destruct mechanism to protect itself. However, the other races believed that the Humans had destroyed the World Tree. With the Tree gone, most races were left with nothing, so many of them fled to Maple Island, thinking that those who remained would perish. They escaped from Victoria and settled on Maple Island, where survival is increasingly difficult. Since then, a never‑ending war between th…