What manga is Mur Mur reading?


In the anime Mur Mur reads manga sometimes. What are these manga?

![enter image description here](https://i.stack.imgur.com/91Fyil.jpg)

![enter image description here](https://i.stack.imgur.com/CN5kGl.png)




It's a fictional manga magazine featuring a few different chapters from
different series. The word シュシュ in japanese means an elastic band of some
sort.

