I looked up chapter 1 of The Bones of an Invisible Person and it looks anything but subdued tbh....
Lol I knew someone would say that (perhaps rightfully so...). I'm not sure how much the first chapter alone would be able to create the atmosphere I was talking about, since it was the chapter where the story is being set up, but I can't say if having read all of it would really change your opinion... To me, it felt quiet, but I'm not sure how well I could explain why it did...?
How about Umimachi Diary? That's a quiet chill drama and there's an outstanding live action film adaptation.
I read the first chapter and it does look promising. But there doesn't seem to be a full English translation, is there? Maybe I'll check out the movie adaptation.
Though that would mean my request remains unfulfilled :(
But tbh, I half-expected no one would answer XD, so this was much appreciated nonetheless.