I ran across the LN for this and came here to check out the manga. It's not as good - skips way too much stuff and jumps around too much. I kinda hope it's been dropped, and will be rebooted in a few years in a form which does the LN justice.
The LN is by far the most realistic isekai I've read, and subverts most of the common isekai tropes. None of the MCs are OP. No harem. The girls act realistic with slight hints of whom they might like (which the guys are realistically clueless about). The guys aren't that confident so willingly defer to the girl who seems to know what she's doing, but step up when called upon. Fate of the world is not at stake. The main antagonist is the situation they're in, not some demon lord or other OP being driving the plot. The main characters start with only slightly advantageous skills - thinking, planning ahead, effort, and teamwork are rewarded. While those seeking the short route to an easy life via traditional OP skills quickly get themselves killed.
It is pretty much the perfect slice of life isekai story (so far - i'm only halfway through the LN). A diary of what it'd really be like to be isekai'd without all the OP crap (even covers the terrible food, and toilet etiquette in the wilderness). Heck, in traditional D&D fashion they all start with barely enough money to get into town, register with the adventurer's guild, eat a meal, and sleep for one night. The main drawback is that because it's so realistic, the plot isn't very dramatic. You're just following a bunch of kids trying to figure out how to survive and make a new life for themselves after being isekai'd.
Regrettably, it took me a long time to get to this one because I'd put it pretty far down my reading list. Due to the title, I assumed it was going to be about an OP MC who used landmines to blow up anything which got in his way. I was delighted to find out I'd been completely wrong. ("Landmines" refers to the OP skills which had been set up as monkey's paw traps, and is used as a mechanism to delete all the isekai'd classmates who were into the OP trope. Pretty sure that was the author's way of saying he was sick of stories about OP isekai skills.)
If you ever wanted an isekai story which isn't an isekai meme story, this is it.