It's hardly unprovoked when the Priest essentially trespassed into his house despite his standing 'No Priest' order.
If a Jehova's Witness suddenly show up in my bedroom, I'm shooting on sight too.
I had a feeling it would go like that, I just hope he doesn't kill the boy for good, would be a waste but I can see the author doing it because his power is the hardest to work around.
This manwha getting canceled is some bullshit, I guess that's what you can expect from webtoon, who keep pushing nonsensical garbage with 'they/them' protags despite nobody reading them.