Aoi Kanzaki from Demon Slayer / Kimetsu No Yaiba
When I tested it some different checkpoint and LORA's it seemed to work well with this LORA.
LORA weight 0.8 works great, but feel free to adjust the strength to your liking.
Prompts that I usually used:
black hair, short twintails, blue eyes, butterfly hair ornament, hair ornament, blue shirt, blue pants, white apron