Karen Otsuka - My Dress-Up Darling
Keep in mind that settings may vary slightly between different versions. See below for more details.
When I tested this with different checkpoints and LoRAs, it seemed to work quite well.
Illustrious:
A LoRA weight of 0.8 works great, though you can adjust the strength as you prefer.
Prompts I usually used:
karen_otsuka, girl, light brown hair, high ponytail, sidelocks, purple eyes, white collared shirt, black sweater,