The protagonist's rescuer and foster father from the opening cinematic. Disappears mysteriously, driving one of the game's longest-running mystery threads.
Jiang Yan, addressed by the protagonist as Uncle Jiang, is the man who carried an unnamed infant out of the snow in the opening cinematic of Where Winds Meet. Where the child came from is never volunteered. What Jiang Yan was before he arrived in Qinghe is similarly withheld - every reference to his past in the early game is in the negative space: a pre-Heaven's Pier identity nobody in the village remembers, a network of contacts only Aunt Han seems to know about, a fighter's bearing that fits no local sect's style.
In the Heaven's Pier years he reads as a quiet foster father, a co-anchor of the family that Aunt Han runs the inn-side of. Yet the connective tissue of Ch.1 implies the two are not simply roommates of convenience: Jiang Yan and Han Xiangxun are spoken about in the same breath, and the burden Aunt Han carries (Aureate Pavilion's pursuit, the Water Lady identity, the Faceless Ones beneath Evercare Clinic) is implicitly something he shares the weight of.
The story's inciting beat is not the Pavilion raid itself but Jiang Yan's prior disappearance - he leaves before Heaven's Pier falls, on an errand the protagonist is never read in on, and never returns on screen during Ch.1. His vanishing is the engine of the player's quest, surfacing across the 'An Urgent Word' arc and beyond.
Through Ch.2 and Ch.3 his fingerprints reappear obliquely - a 'secret' Yi Dao is sent to deliver, contacts whose ledgers list Jiang Yan as their tie to Han Xiangxun, gaps in Aureate Pavilion's records that fit his outline. As of v1.6 he has not returned on screen; the question of whether he is alive, captured, in hiding, or operating undercover remains open.