Arrow from Fire Force
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:
dark blue hair, forehead, yellow hair clips, blue eyes, white pupils, symbol-shaped pupils, arrow pupils, white hat, white headwear, ashenf uniform, oversized clothes, white cape, yellow belt, red cross, oversized clothes, black sleeves, long sleeves, white gloves, fingerless gloves,
SD 1.5:
A LoRA weight of 0.8 works great, though you can adjust the strength as you prefer.
Prompts I usually used:
black hair, short hair, forehead, hairclips, blue eyes, arrow-shaped pupils, white dress, white cape, white headwear, black sleeves