Lin Yu never thought that his ordinary life would be completely changed by a dusty old book. It was an ordinary afternoon. He was rummaging through debris in the old house left behind by his grandfather. A yellowed ancient book suddenly emitted a strange shimmering light. As soon as the light flashed, he lost consciousness.
When he opened his eyes again, Lin Yu was in a strange place. The sky showed a strange purple-blue color, huge ancient trees blocked the sky and the sun, and the tree trunks were carved with mysterious runes. There was an earth-shattering roar in the distance, as if a giant beast was roaring.