Therefore, Lan Weisong thought that the Nangong family still had the upper hand on the Shi family and had beaten them in this battle. That was why the Shi family had specially summoned everyone back to meet in person.
He had only briefly reminded himself not to get into a conflict with the Nangong family. He spent the rest of his time and energy on colluding with the Shi family and their powerful and influential side branches. He did not take their warning to heart at all.
Therefore, when he came up against Nangong Nuannuan, he deliberately ignored the fact that she was a member of the Nangong family. He thought that she would never put her family in danger over the mere Wu family. He thought his status was powerful enough. Once the Shi family found out that Nangong Nuannuan had interfered with his plans, they would definitely help him, and if the Shi family got involved, the Nangong family would naturally weigh the pros and cons of getting involved themselves.