Dong Yuanxi's disciple was named Song Bin, who was also among the younger generation of outstanding disciples in the Frost Moon Sword Hut.
Although the martial arts sects of Bashu Province are renowned through Jianghu for their sword forging art, and the Frost Moon Sword Hut is known for producing several master swordsmiths; it doesn't imply that the Frost Moon Sword Hut does not have disciples specializing in martial arts.
After all, all major martial world forces of Bashu know that Grandmaster Refiners are merely respected while Martial Arts Grandmasters are highly revered.
Song Bin was one such disciple of the Frost Moon Sword Hut who specialized in martial arts. Just like his master, Dong Yuanxi, he was much more skilled in martial arts than in artifact refining.
After coming to the King of Shu's Residence, Song Bin said to the two gatekeepers, "Deliver this letter to Lord Su Xin."
The two gatekeepers, however, cast a sidelong glance at Song Bin without making a move.