Chu Qingcheng from Magic Emperor (Demonic Emperor)
prompt : 1girl, solo, chu qingcheng, purple hair, purple eyes, hair ornament, absurdly long hair,
default outfit : white dress, shawl,
just add "mouth veil, veil" for the veil part. don't use it and put it in negative if you want her face is not covered
weight : 0.8-1 seems good. (lower it if you want to change her clothes)