TL;DR - This manga is not worth your time in any sense, look elsewhere. Typically, trashy isekai manga are my guilty pleasure. I like seeing tropes unfold that I saw coming from a mile away. OP main character wish fulfillment is my bread and butter. This manga however, I didn't even begin the second chapter because of how aggravating the writing was. Hypothetically, let's say you're isekai'd. REGARDLESS of what your title or rank or whatever is, you discover an ability that effectively turns your enemies into paste. While you're in these life or death encounters while surviving by yourself in the woods, do you, A: fiddlearound with other abilities while a bear easily 10 times your size is attempting to maul you? Or B: use your one-shot kill ability BEFORE it manages to drive its claws straight through your chest? I, as well as any other sensible person would choose B. Our MC on the other hand waits until he's bleeding out on the ground to use it since he can heal. But that begs the question, how the fuck is he going to heal if he instantly dies due to not using his one-shot ability? The author apparently never thought about that.

On to the other plot point that really pissed me off. Our MC is assigned the role "Cook" which everybody instantly deemed as useless. Someone with a brain would think "Oh, we should probably keep him around so he can feed us after tough battles." But as I mentioned, nobody in this manga seems to have a brain. They do the typical thing where the tell him to fuck off and send him somewhere that should be instant death but he instead thrives and levels up very quickly. But it has none of the lead-up that makes any of it satisfying. I have never come across a manga that managed to piss me off enough to make me drop it this fast before, it's honestly impressive what the author accomplished here.