Old Master Lin nodded, then shook his head, "The identity of the man matters not, you only have to remember this: the Lin family lost all their lives on their way to the Northern Land."
Ziyin had heard of the animosity of the older generation. Their branch of the Lin family did indeed have a connection with the Lin family in the capital City. However, it's unfortunate that grandfather of the old master was used as a scapegoat by the Lin family. He was blamed for the mistakes of the legitimate members, and then his entire household was banished to the Northern Land.
Although there's a basic difference between banishment and demotion, the hardships endured are pretty much the same. Moreover, when the Lin family reached the Northern Land, they had a tough time, and they didn't receive any care or assistance from their relatives in the capital. It's almost impossible for the old master not to bear any resentment towards the main family after all these years.