Reze/Bomb Devil from Chainsaw man
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:
reze-cm, purple hair, hair between eyes, hair bun, green eyes, black choker, white shirt, sleeveless, black ribbon tie, black shorts, shirt tucked in, black thighhighs,bombdevil-cm, covered face, black mask, sharp teeth, black top, black gloves, elbow gloves, bare shoulders, black apron,