I thought that this would be some standard rehash series that just had one defining feature ('suspicious'), and it kiiinda is so far, but somehow it's also not just enjoyable, but precious. It was looking promising at chapter 4, but side characters have nailed it.
So, doesn't seem like it'll amount to much, pretty textbook, very rushed, sudden MC personality change/ruthless calm, and the artwork does not make up for it. The last panel was a nice image, though, so will go for a few more chapters, because I'm a sucker for isekai.