Is pun intended? 😅
Discussion
Thanks for the sats! Pun? 
Yeah, like a wordplay on her name Machi. Machi = waiting in Japanese. So she's doing just that in the photo, waiting 😅
Oh, I don't think so. It's just how her name is abbreviated by the character herself. By the way, she has the same voice actress as Anna from Make Heroine and there are artists redrawing Anna's scenes with her 😆. The pics aren't on this PC though.
I see, my misinterpretation 😅btw that's a sweet art!