Susamaru from Demon Slayer / Kimetsu No Yaiba
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.
Pony:
A LoRA weight of 0.8 works great, though you can adjust the strength as you prefer.
Prompts I usually used:
pale skin, gray skin, short hair, black hair, orange hair, multicolored hair, two-tone hair, yellow eyes, japanese clothes, orange kimono, black haori, black coat