So it was one of those "only an ad for the light novel" manga...
Too bad as the novel won't probably be officially translated in other languages ever (it seems to be your standard "relaxed isekai viva Japan food" stuff).
At least the unofficial translation is going strong (you can read it there : https://mountainofpigeons.wordpress.com/isecafe/ ) , maybe I'll read that one day or another (I follow already way to many webnovel translation right now to start another one at the moment)...
Unfortunately this manga was completely forgettable, even as a four chapter ad for the light novel.
oof, I feel like I was told it was short at some point, but I forgot. Taken as a whole as a oneshot, I'd say it was pretty good. Though very casual. Good for some lowstakes, lazy Sunday reading.
this reads like your run off the mill fluff until some smartarse editor said, "hey, lets make this an Isekai!" Its one step away from following whisper of the heart