This is Akiko Kurata from Confession of Akiko Kurata. It's an NTR work, not my favourite genre but I like the character design.
Her prompts are:
solo, coakakku, mature female, short hair, bob cut, blue hair, blue eyes
Her usual outfit:
cardigan, skirt
Version 1 notes:
Looks ok considering it's using the same process that I had gone through for chisato ninomiya. Make sure to use solo tag. For some reason her hair can be frizzy, lowering strength and cfg seems to reduce that.