This manga is a masterpiece. There isn't any other way of putting it.
I remember, when I read volume 1, a long time ago, I thought "tee hee, this is some cute fluff" and then pretty much forgot all about it. Because, you see, there were SO MANY other series cut on the same pattern (cute girls doing cute things, with vaguely romantic moments, in a 4koma format) and this one didn't feel strikingly outstanding next to the rest. So I forgot everything about it, even the name. Then, half a year ago, I was browsing through the Dynasty archive and found that there were four volumes out of something called 'A Room For Two' - and started reading.
Then I was like "Oh, I know this! I recall now! I read the first volume a while ago!"
Then I was like "Wow, time goes by in a realistic way, they are in their third year and graduating soon! Does this mean the end of the series? Oh, look, it's not ending, it's going on!"
Then I was like "Hey, what's with these girls? Are they really planning to live together and sleep together for the rest of their lives? Isn't that, like, a lesbian marriage or something?"
Then I was like "OMG they are doing it!! They are really doing it!!!"
Then I was like "Their families approve of their marriage! They talked about having children using IPS cells! They have been a couple for four-five years already, and they love each other more with every passing day! Their every interaction fills me with joy and elation, and it's too much, and I can't even, and asflgbsmflghbflasglb"
Seriously, I don't think any other manga has ever managed the tour de force 'A Room For Two' has successfully executed. We are at 6 volumes and about 5 years into the life of two girls intensely in love, and every development is a positive and uplifting one. No contrived conflicts here: no angst, no spats, no love triangles, no haters, no worries about gayness being wrong or unnatural or whatever, nothing but the simple happiness of loving each other and caring about each other with all their hearts. And it's one of the most exciting reads I've ever had the pleasure to enjoy, with nary a moment that feels tedious or repetitive or lacking in authenticity. Yukiko-sensei must have been blessed at birth by the yuri fairies with the gifts of brilliant storytelling and mastery of narrative pace and virtuosity at character development; there isn't any other explanation for this level of accomplishment. That's what I honestly believe.
I love this manga so much. (˵ ͡° ͜ʖ ͡°˵)⌒♡*:・。.