Well, you edited your post, removing the image of a rather average panty shot, and a sarcastic claim that it is "such shameless fanservice." Never fear! Ryllharu is here to make things, much, much worse.
Why, yes, I agree, but in a non-sarcastic manner that it is indeed shameless.
It does rub it in your face, and they even address it in the dialogue.
exhibit2.jpgExhibit1.jpg
The important part is this:
Both these images are from the same episode, which is only the 2nd one. Actually, it's just the first half of that episode.
There's even a deliberate lead-up so you're prepared to see them. A set of keys very slowly flying through the air (true, only a few frames there), and a lot of focus on the nurse (yes, it is the whole conversation).
Granted, I've only watched the first three episodes, but let's not pretend this show isn't about fanservice.