This is basically a model that mimics Shigenori Soejima's art style.
To be precise, it was created by entering (Persona:1.2), (Shigenori Soejima:1.2) into NOVEL AI's model and aiming for a specific art style that comes out when you get lucky.
A hard model is one that pursues art style at the expense of most things except art style.
It's not a good model to use on its own, but sometimes it's what you need.
It's a model that aims to improve prompt recognition, backgrounds, light sources, and overall things like finger representation at the expense of some art style.
It's not a huge improvement, but hey, at least they tried, right?