C559 Fortuitous encounter
Gusu's Yu Family was the Minister of Revenue, and Nangong Lingyue also represented the poisonous worm Palace. As a result, the imperial government and the poisonous worm Palace had an additional connection.
Moreover, since Fang Lingsu doted on him like that, he believed that the Gusu family would understand that Nangong Lingyue was someone who could not be hurt.
With this thought in mind