An Ren was the mother of Lie Ren and wife of Li Ren. She first appeared in "Kuroyuri". She lived in Kuroyuri Village with her family until the Nuckelavee and a horde of Grimm attacked their village and the roof of their house collapsed on her.
An had dusky rose hair held in a bun by a gray band and pink eyes. She wore a long green dress with long sleeves, cutouts on the shoulders, black ballet flats, and a pink sash. It can be surmised that Lie got his pink eyes and hair streak from her. Her outfit is of a similar style to those of her son and husband.
- An (安) is Chinese for "peace/quiet", associated with the color white. It also means "heaven, sky" in Sumerian.