This was probably the most realistic slice-of-life I've ever read. Don't look for drama or deep story, this is just a couple going about and enjoying their life together.
I found this piece while on a binge of short romcom slice-of-life mangas (Karagiri-san, Tsukita-san, Uchi no Kaisha no Chiisai Senpai no Hanashi etc.) and it kind of positively surprised me with how casual it was and how satisfied I was at the end. It did everything it set out to do, nothing more, nothing less, and it was a true delight.
Maybe it spoke to me more to see two adults live a little more on the childish side but I also saw what made their relationship stable and could understand it (even being a 19yo shut-in XD).
I deem this work a satisfying/10 and I stand by my actual score. Way more mature than some other (also great) works. Props to Eda Aki.