He Yongyan is Jiang Heng's comrade in the military. He is friendly and curious about Jiang Heng's personal life. He tries to persuade Jiang Heng to go on blind dates arranged by the military leadership, including a doctor from the military hospital introduced by the deputy commander. He remembers the first time he heard Jiang Heng on the phone with his grandfather, noting how serious and silent Jiang Heng remained during the call. He is envious of the match opportunities Jiang Heng turns down and cannot understand why a man would not want to get married. He jokes around with Jiang Heng and is surprised by Jiang Heng's deadpan humor when Jiang Heng pretends Deputy Commander Wang is present.
