Chints

I once started this because of the fake relationship tag and watched about halfway before dropping it as I was so confused at the extremely slow plot. I decided to come back and give it another shot and was very pleasantly surprised at how lovely the story developed between the two main characters.
This is not a slow burn, this is a barely smoldering ember you could leave alone for days and not worry about any change or damage. I would honestly say any actual plot only started around episode 10, and up until then was just a lot of character development and laying of the foundations of their relationship. It was a bit of a slog to be honest, but they came together in such a natural way that all the slog in the beginning made sense. A true strangers to friends to lovers (or I guess, strangers to spouses to friends to lovers). It was beautiful, but I don't think I could rewatch it lol.