Outta Fire

The ninth son of the Dragon Pool Sea came to the world to learn through experience, but he accidentally joined a special high-tech fire brigade. In order to blend in with his human partner, he must perform dangerous tasks while hiding the fact that he has superpowers, constantly having to choose between a life or death choice of saving lives or not exposing his identity.
More importantly, he would have to gradually heal from the darkness in his heart as he grows up, after witnessing human disasters for thousands of years.