In the English version, it says on those that they are Divine equipment, requiring the Acolyte trait. That trait is mutually exclusive from both other weapon traits (magic and high quality weapons) so you can't use it if you have the trait for that bow and whip already.
I played around with the holy stuff some time back, it was pretty bad, but these divine equips intrigue me.
Any tips for the combat system?
Focusing on physical weapons is the best. Long bow is wildly powerful. Shame the god slayer sword doesn't have the boss's charge attack, that'd make that one busted too. Just plow through a wall of enemies. Spin is super underwhelming.
But the bow, and the saber and shield, they're insane. Plus the overkill trait is funny.
Magic is a bit more difficult, not really worth trying that if you don't want the added difficulty. Cool if you just want to play her a certain way
Sex combat skills mean you can rape someone to death if you want. Go down that line depending on your personal desires. I don't prefer it.
Acolyte for mend soul is interesting, but completely disables magic and high quality weapons, so it's a big compromise.