Han Chaerin from Subscribed to GodTube Manhwa
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:
long hair, black hair, blunt bangs, hair up, blue hair accessory, blue eyes, black crop top, white jacket, navel, black pants, sweatpants, jacket off shoulders,