itch.io

@Rayakuma I actually beat her a few weeks back during my virgin paladin run. I farmed the hunger charms until I had both the Unbreakable shield and Full Plate. I had all the stat boosted gear( helm of wisdom, etc.). I also stacked up on Mana chunks for combat healing, along with health potions. I use a combination of Armor Crusher (plus max sunderer)  and Crushing Blow.  I use Armor Crusher until her armor was depleted, then switched to Crushing Blow until she was defeated. Always keep an eye on your health and use guard and second wind when you can.

Go the Old Manor in Monster town. You need to visit it twice to actually enter the manor. Also the impotency basically permanently puts a chastity cage on you along with lowering your femininity by quite a lot. 

I was able to get the skin by doing the Beastmaster rank 3 requirement, but then it's an automatic gameover. I'm fine with that, however, unlocking the skin to only get a game over is a bit strange.