Legend of Sho 2nd seeason

The Legend of Sho 2nd season takes place during the An Lushan Rebellion of the Tang Dynasty, a time of great turmoil in the Central Plains. The region is plagued by monsters, and Li Haobai, from the Bashu region, sets out to join the front lines in the hopes of making a name for himself. However, his journey is cut short when he's swallowed by a monster, and during this ordeal, he merges with a guardian of the dragon's veins, granting him the power of the black dragon.