>>8488
By chance I discovered it in this checkpoint:
https://civitai.com/models/140272/hassaku-xl-illustrious

The pony variant also works. Butt the illustrous version is a little bit more consistent.
I mask the neck and do an inpaint with this prompt:
bruised neck, dead, death, ryona

It takes usually several tries.

If you use it on the initial generation it leads to undesired outcomes.