This is the premise or like set-up, but not really the actual narrative, as far as I can read. What is the story actually about, who are we following, what are they like, and what's the plot arc? This sounds like the opening to The Devil is a Part Timer sort of, but the part you have here only covers basically the first two minutes of that show, and is missing the other 99% of what it's really about (a derpy devil trying to be a part-timer in a lazy human world and sort of settling into a routine instead of escaping).
So what is the goal of the characters? They are sucked into this world and then what? They are struggling to get back? They want to conquer it? They begin to spread religion there? Why would they fight each other now that they're in a new world and no longer pressured?
Second note, and this is a general isekai rule:
You're moving characters from one fantasy realm to another, and neither of them are the actual human realm. Typically, the purpose in moving them to a different realm is to change the rules on them and to give them a new or unique experience, either by putting a regular dude in a fantasy land and giving powers or putting a fantasy character in a regular world and removing powers. This appears to just be moving existing fantasy peeps to another fantasy place with slightly different rules, so I'm not sure how that will affect their growth/change. Usually you move them to a world that either gives or takes so that they have to adapt. This is more like "hey you had a power over here, you're used to having power, don't worry that isn't gone, now it's called something different here and is a bit different power but there's still power." At a conceptual level, nothing is really lost. It's possible the narrative that's missing I pointed out above solves this problem though so this could all be nothing.