Erniu, hearing the old master's words, didn't stand on ceremony with him. As the saying goes, business is business. He had already gone above and beyond the call of duty by saving the old man's life out of respect for his "Merit." Now, to help the Tang Family deal with the Sorcery Master behind the sorcery, he could bring big trouble upon himself.
Therefore, Erniu didn't feel he was unworthy of an equal reward, so he readily replied, "Old master, let's talk about compensation later. However, I need to make something clear first. Catching the Sorcery Master who put the sorcery on you is not something we can just do if we say so. This might not be accomplished overnight!"