My Happy Marriage 

Have you already read this novel? Or perhaps did you watched it on Netflix? I came across this anime adaptation upon scrolling on Netflix. I became curious and did an episode marathon (it's still ongoing by the way). I'm rearing to know what's next so I searched for the book. I thought that it would be a comic but it turned out to be a novel. Here is a trailer from Netflix:

In some ways, I could relate to the characters in the story.