Shoko Haimawari - My Hero Academia: Vigilantes
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:
shoko_haimawari, light brown hair, short hair, dark yellow eyes, light blue suit jacket, purple turtleneck, light blue skirt, straight skirt, gold necklace, serious, mature,