Xiao Guangnian recognized He Kao, but did not ask about his relationship with Jiang Daozhen. After all, he's a secret disciple, he knows the rules, even if asked, he wouldn't admit it.
He misunderstood a bit, thinking He Kao came specifically to pay respect to him, an elder of the sect.
The Lingxi Sect doesn't have many disciples, the fewest among the Seven Great Magic Sects. Apart from Jiang Daozhen, the elder who is closest to He Kao in the sect is his second uncle.
It's still the first month of the lunar year, not even the Lantern Festival yet. He Kao must have come specifically to wish him a happy new year!
Since the elder was so happy, He Kao didn't deny it, because strictly speaking, it was indeed Jiang Daozhen who had told him, using the Divine Thought Heart Seal, that Xiao Guangnian was staying in Xiaohe Town.
