Subaru Hatsusegawa - 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:
subaru_hatsusegawa, long hair, pink hair, side-swept bangs, bow bun, orange eyes, white collared jacket, pink ribbon bow, white jacket, brown lapels, brown cuffs, pink skirt, layered skirt, white frills, long skirt, frilled skirt, plaid skirt,