In the ancient and mysterious town of Aier, a legend about the Vermilion Bird has been passed down for generations. The Vermilion Bird is a divine beast of immense power, capable of bringing both rebirth and destruction. A thousand years ago, its power spiraled out of control and caused a catastrophe. It was eventually sealed within the Spring of Life. But as time passed, the seal gradually weakened, and the Vermilion Bird’s power awakened once more, plunging the entire town of Aier into crisis. Karl, the young, brave, wise, and responsible sheriff of Aier, takes on the duty of protecting the town. Together with his friends Tom and Allen, he successfully seals the Vermilion Bird’s power, but Karl knows this adventure is far from over. To uncover the Vermilion Bird’s secrets once and for all and protect the peace of Aier, Karl decides to embark on an unknown journey. Along the way, he will face all manner of challenges, from mysterious ancient ruins to the lands of unknown divine beasts. Gradually, he will uncover the origin of the Vermilion Bird’s power and the greater secrets hidden behind this world. In the process, Karl will not only grow into a true hero, but also discover the power hidden deep within himself.