Birthday: May 2

Jiang Cheng's sister, Wei Wuxian's sworn sister. She's not too particularly beautiful but has a gentle and graceful personality, and really good culinary skills. Since young, she's been betrothed to Jin Zixuan, the young master of Lanling Jin clan. Treats Wei Wuxian like a brother. Underneath her gentle and polite exterior, however, Jiang Yanli was fiercely protective of her family. She refused to tolerate any insults towards her sworn brother Wei Wuxian, and she alone possessed the ability to reason with Wei Wuxian in the depths of his grief-stricken madness. Ultimately, she did not hesitate to sacrifice her life for her sworn brother's.

Jiang Yanli is in her late teenage years when Jiang Fengmian learns that Wei Wuxian has punched Jin Zixuan after the latter expressed his displeasure over their engagement. Jiang Fengmian convinces Jin Guangshan to cancel the contract, lest Jiang Yanli and Jin Zixuan find themselves in an unhappy marriage. Although she says nothing to Wei Wuxian at the time, he eventually realizes that she is quite dejected by the cancelation, as she is fond of Jin Zixuan.

(source: Grandmaster of Demonic Cultivation wiki)