Although the Gu family's roots ran deep, they were not well established in the capital. His father had been doing well over the past few years, and with Old Master Mo to help him behind the scenes, the Gu family had managed to establish themselves in the capital.
But while the Gu family was establishing itself, it would threaten the position of the other families in the capital. The old families in the capital, including the Bai family, would not want to see competitors emerge.
Once Gu Qingyao married Mo Beihan and the Gu and Mo families were allied by marriage, it was not just the Mo family which could repress the Bai family. The Gu family would also become a threat.