Gu Ningxi's cousin, a fifth-rank Yunwei General who earned military merits in the southern campaigns. His courtesy name is Mingxuan, given by veteran General Sun when he came of age. He is the pillar of the Meng family after his maternal grandfather and uncle passed away. He purchased a residence in the capital and brought his grandmother and aunt there two years prior. He meets Gu Ningxi at Qingming Teahouse and explains the details of the Battle of Sishui Pass to her.
