I figured it out, I was hoping I would have enough time to edit the comment before you saw it lol. Impressive response time by the way!
It was about the Light Seeker weakening you with his special ability which completely makes you unable to fight anyone and I didn't have a clue as to how to mitigate or undo it.
Edit: I'm still a little confused as to how to defeat them, as they just weaken you to a point you're unable to effectively fight back.
Viewing post in Crane's Romantic Nightmare (18+) Adult RPG v0.2 comments
I figured that was that problem, I've heard about that from a few other people. Definitely a bit of an unintended interaction. In the later beta builds I fixed the issue in a few ways. It won't use that attack as much anymore and I adjusted damage formulas so that changes in ATK and DEF won't completely nullify damage. So It won't be an issue once v0.3 releases.
As for how to deal with them in v0.2. Best bet is probably to burst them down with the pistol. There's also an accessory called the "Cryptid's Ring" that gives a skill that removes ATK debuffs. You can find it on the eastern edge of the forest in a cave. Though I think in v0.2 it only removes 1 debuff stack so it might not be as effective.