In fact, Yu Ning misunderstood. It wasn't that the old ancestor didn't care, but it was useless even if he did. He couldn't do anything about it! This spirit beast was bought from the Qian Mountain sect at a high price and had followed Yu Ning since she was young. If the Qian Mountain sect, which specialized in raising spirit beasts, couldn't do anything about it, then he naturally wouldn't waste his time.
But this time, the situation was different. Lin Yi was able to take away the spirit beast of the GaN mountain sect and even increase his strength. This was something that the elder of house Yu would definitely be touched by, so Lin Yi might really have a way.
Plus, the importance of this spirit beast to Yu Ning, the old ancestor of house Yu knew it better than anyone else. He didn't have a way before, but now he had a way. Even if he had to ask Lin Yi, he could only accept it.
