Wow, this is probably the first isekai I've actually felt I could not stomach, and I've been able to get through some pretty crummy ones on the premise that I love isekai alone. I actually smirked a bit that the protagonist literally was trying to reach another world and does in the beginning, but beyond that I couldn't find a single thing to like about it.
This is the laziest Konosuba "inspired" manga. They have no idea why the character dynamic worked as good a sit did. This is like what happens when a 12 year old decides he's going to do his own edgy spin on Death Note, with a main character named Lightbulb Sodomy and an adversary named Luigi.