The main antagonist in the anime Deca-Dence. He wears cool black sunglasses. The LoRA was trained using natural language prompts and performs better with them (though key tags are also provided in tag format for convenience).

Main trigger:

HuginDD, purple skin, sharp-angled black glasses, man
short grey hair, slicked-back hair

Clothes:

asymmetrical white coat, loose grey trousers, white shoes

Clothes options:

grey rectangular panels on shoulders, grey rectangular panels on sleeves,
gold trim, gold piping, gold-toned lapel trim, gold hem trim, structured shoulders
light grey pants, simple white footwear

Details and oprions:

pointed chin, angular jaw, thin angular nose, swept-back hair,
pointed glasses, angular eyewear
narrow face, stern expression, serious expression
tall, slender build, lean figure

Notes:

1. The LoRA can negatively affect the style (since almost all the images are anime screenshots). It may also distort other male characters. Hugin’s range of expressions is limited; in the anime, he is almost always serious.

2. I don't know if there's a simple formula for creating a great antagonist—whether it's crafting a backstory and logical motivation, making him completely unhinged, or just giving him a pair of dark sunglasses. But having a cool voice actor is half the battle. In the English version, the character Hugin is voiced by Barry Yandell. And in the Japanese version, by Takehito Koyasu! (Kono Dio da!)

3. Munin isn't supported; there are too few images of her. But you could try using just a black raven.