The stories of the first generation of dragon fighting warriors (Ouyang Ling, Lu Zitao, etc.) Have become legends, and the Star Dragon Sanctuary has been peaceful for many years. As the descendants/heirs of the first generation, the five Luo Xiaoyi have grown into a new generation of guardians, but they have not yet experienced the true world-destroying test. An ancient dark force called "Dark Star Dragon Realm" from the depths of the universe has awakened. Its purpose is to swallow all the dragon soul energy and reshape the laws of the universe. They are not "dragons" in the traditional sense, but terrifying existences composed of pure negative energy and the resentment of ancient dragons. Based on the original Dragon Fighting Machine, Dragon Fighting Card, and astrological power, the concept of "Dragon Soul Resonance" is introduced. The second-generation warriors need to deeply understand and integrate the nature of their partner dragon (or the new dragon soul power), and even touch the "star dragon origin" in order to fight against the power of the Dark Star Dragon Realm. Inheritance and transcendence, the test of trust, the meaning of guardianship, the symbiosis of light and shadow, the cost of growth, and responsibility on a cosmic scale.