In myths and legends, there is such an ancient story: At the beginning of the ancient chaos, when the great god Pangu fell into a deep sleep, he planted a sacred tree called an oculus in the corner of the sky and the sea, which bloomed and bore fruit for three thousand years. Six thousand years later, Ehan first bore fruit, and each gave birth to a fruit. The fruit absorbed the essence of the sun and moon for another thousand years, and slowly developed a spiritual body. It is said that there were already early humans at that time, but there is no record in the current history books. Human beings evolved slowly, and society developed rapidly, from simple group living at first to wars of contention. Later, there was a powerful leader named Luo. Obtaining a stone tablet from ancient times, he learned from the stone tablet that the fruit of Ehan has the ability to fulfill human wishes. He mobilized all his tribesmen to search for the corner of the sky and the sea recorded on the stone tablet. After more than 30 years, he finally found Ehan. On the third day after the leader made a wish for the Ehan fruit, all races, animals, and plants died suddenly except the Luo tribe. The following month, because there was no living conditions, the Luo tribe also disappeared. No one knows what the Luo tribe leader made a wish and what happened in the middle. Thousand years passed, and humans, animals, and plants appeared again, until now.