Riko Amanai from Jujutsu Kaisen

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, single braid, blue eyes, school uniform, white serafuku, white hairband, blue pleaded skirt, pantyhose,

Pony:

A LoRA weight of 0.8 works great, though you can adjust the strength as you prefer.

Prompts I usually used:

blue hair, single braid, blue eyes, school uniform, serafuku, white hairband, blue pleaded skirt, pantyhose,

Pony:

A LoRA weight of 0.7 works great, though you can adjust the strength as you prefer.

Prompts I usually used:

blue hair, single braid, blue eyes, school uniform, serafuku, white hairband, blue pleaded skirt, pantyhose