Grandmaster of Demonic Cultivation Acrylic Stand A-Qing Yi City Arc 16 cm

Spoilers tonen

A-Qing was a young girl who lived who pretended to be blind thanks to her white pupils. She encountered Xiao Xingchen and started living together him and Xue Yang.

She eventually saw Xue Yang trick Xiao Xingchen into killing Song Lan, and ran away at Xiao Xingchen's request. Xue Yang found her before she could get help, and she insulted him. Xue Yang then carved out her eyes and tongue, killing her. She later tried to warn Wei Wuxian, Lan Wangji, and the juniors who had entered coffin city about Xue Yang.
To learn more about her story, Wei Wuxian used a rite to see, feel, and hear her memories.

(Source: Mo Dao Zu Shi Wiki)