Unless you have a Dullahan fetish, it's best not to abuse the girl after environmentals drive her fear to 100. This is a pretty spooky bug.
If she strips naked she can one-shot monsters with prayer... sometimes? It's not clear what the rule is. I thought I'd found an easy mode but it's not consistent, and of course damage received is much higher without armor.
If you use the genital replacement tag and then *don't* have the guy masturbate, the female spirit will stick around for later encounters.
The game might not seem hard to begin with, but without any way to farm, you can feel the mounting threat of scarcity.
Clothing can be damaged and then destroyed, and then rebought from the buy/sell menu.
T-ENTA-P's worth the MTL, and it's not hard to follow the very realistic and familiar mechanics like mixing sperm with carbonated water to make a health potion or putting sperm on bullets to make a ghost-damaging bullet.