Rune Yamauchi - 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 0.9 works great, though you can adjust the strength as you prefer.
Prompts I usually used:
rune_yamauchi, long hair, light brown hair, parted bangs, brown eyes, white collared shirt, red necktie, black sweater, long sleeves, light blue skirt, pleated skirt, plaid skirt,