Mikura Sayako (御蔵小夜子) from the eromanga Oretachi no Sayako (オレ達の小夜子) by Miito Shido. Cute glasses girl under goes moral degeneration because reasons. Trained on a variety of images, including some NSFW. Tag as required. Hair color seems to come out mostly right without tagging it, but I include red eyes as it seems to prevent monochrome images.
Prompt
mikurasayako,glasses,red eyes,low twintails,mole under eye,mole on neck