The "Yes, yes, Americans are crazy. I mean, look at how they're handling Corona-chan! There's no doubt, they're bonkers!" kind of looks.
Wait does anybody actually call it Corona-chan there or is that part of the joke. XD
In Japan, they really call it Corona-chan. :-) That's Japan for you, they like to make everything cute. I wouldn't be surprised if one of these days the otaku community turned Corona-chan into a moeblob girl character who is just misunderstood.
Since this manga (as far as I can tell) is in real time (the last chapter was a February in a leap year and this chapter was March, so it presumably takes place in 2020)
It is just as you say. The story timeline follows exactly our real time. One month in real time is one month in the manga, and one year in real time is one year in the manga.
I wonder if the April chapter will have anything to do with the whole global lockdown thing. Of course, the manga doesn't necessarily take place in our universe, so the author doesn't have to incorporate it if they don't want to (I imagine they have chapters more or less planned out in advance), but it would be interesting to see.
Imagine if Japan went into an European-style lockdown. A strict “shelter in place” policy.
Kasumi and Sakurako would have to stay at home, just the two of them, 24 hours a day, 7 days a week. Can you picture it? Our girls, all alone in a small apartment, with nothing to do but enjoy each other's company, for Heaven knows how long?
That would be the end of Sakurako. I don't think her heart could take it.
(Oh, but she would probably die happy... XD )