I read the wn version. Just saying. This is 100% meant to make fun of every single harem-sekai bs trope out there. Which is pretty great.
The problem for me is the mc vibes as a sociopath. Which makes it hard for me to relate with him.
He hated his party members with a passion. So he killed them. Uhhhh. Kay. I get it. Some of them were total assholes. Some were annoying. But he literally killed them. This type of power fantasy exists, but isn't one I enjoy.
There are instances of relatablility for me. But those cases are fewer than the distasteful portions.