In the Cangyuan Continent, where dragons and knights jointly protect each other, Rhine, an ordinary young man, accidentally established a bond with the proud dragon Leiger and entered the Dragon Knight Academy. Competition and collaboration among students, the crisis of trust between dragons and humans, the remains of mysterious dragon battles and the mystery of the extinction of dragons are intertwined. In a humorous, playful and dangerous adventure, Rhine gradually grew into a true knight, facing the separation of friends, betrayal, dragon disasters and power struggles. In the end, the dragons and humans fought together in a desperate battle. Rhine and his partners realized the true meaning of "protection and responsibility" in the struggle and redemption, and the Cangyuan continent ushered in a new era.
