Normally, I will read almost any isekai where the characters all generally seem to remain nice and gentle people. That sort of power fantasy with no stakes and no viciousness can, I find, be pleasant and relaxing to read, even when the writing isn't all that great.
But this one just has so little to say. The characters aren't even one-dimensional; they're just dimensionless specks filling in for their roles in the plot... except there is no plot, either, just going listlessly through the motions of "being an isekai guy".
The few times it starts to raise even half-interesting worldbuilding questions (like, "Is this other demi-god also Japanese?") it just kind of shrugs them off and returns to mumbling generic isekai phrases.
...I may return to this when I've had a lot less sleep and have a lot fewer brain-cells to be bored with. XD