Aizawa-san's been on a 2 month hiatus now; it's not that I've fallen behind. Nothing to be concerned about either, just a standard volume break. Apparently chapter 13 is done but just missed the October deadline. Dorothy said she's "excited/scared" to see everyone's reactions to it.
Also volume 2 is on November 8th. Back cover is a super cute Kasumi getting princess carried by Sayaka.
Rereading the series, and a few mysterious reactions stuck out to me:
1) In chapter 8, when Honda sees Michi pinned under the shelf in the gym storage shed, she does not shout "Michy!" as you'd expect, she shouts Michi's last name, "Kurotori!". She's right back to calling her Michy again the next panel, as she helps Kasumi pick the shelf up. What's up with that? Given that was a reflexive shout in panic compared to everything else, it makes me wonder if her apparent closeness to Michi something that she's forcing to some degree.
I think Reona just drops her silliness when things get serious. Though there's room to suspect she'd get a subplot later related to why she's hanging out with the unpopular kids. I think we are due for a Reona arc soon since she's the best gateway into De:Lphinus.
2) When Senpai arrives at the nurse's office afterwards, Michi and the possessed Kasumi are behind a curtain, with Honda on the other side. What's she doing out there, separated from the others? And when Senpai tells her to go find the nurse, she's got sweatdrops and seems really nervous. It's just kinda weird. Why was she still hanging out in the nurse's office but not with Michi and Kasumi? Why was she scared of Senpai?
She knew about Sayaka's reputation as an unpredictable weirdo so didn't want to go near her. But since she's the one who told the teachers, she was probably stuck explaining to Sayaka (since she helps the nurse) and Aizawa wouldn't leave Michi's side.
3) In chapter 10, when Aizawa helps Senpai find the sulking Michi in the stairwell, Michi is shocked to see Senpai talking to Aizawa as if she's normal- and I am too, considering this scene has Aizawa floating around (it's even got a "float..." sound effect to emphasize it. And the "weird guy" she threw ink at in the previous chapter's flashback is obviously inhuman as well, given his shape: Does Senpai just think it's totally normal for some people to fly or have wounds that never heal forever on their bodies or have monstrous shapes?
I don't like attributing everything to memory loss or curses, but since they're in play, it's possible Sayaka is also cursed to somehow not recognize ghosts. Or there's the line of thinking that Sayaka is actually the special one for not triggering Aizawa's ghostliness. I wouldn't bet on it—I think it's extremely likely she's just a big gay dummy—but until we know what kind of ghost Aizawa is or more about ghosts in general it's a possibility Michi isn't the unique one getting spooked by her.
Also I'm not sure how literal the floating is. It's a consistent SFX Aizawa gets but it could be more of a metaphorical thing with her being lighter than a physical body. Normally she's running around on the ground except in gag panels where she might come out of top frame or something.
4) In that same conversation, Senpai waves to Michi, who plays dumb and says "maybe it's a ghost then I dunno lol". Senpai laughs it off, who would believe in ghosts at their age? And Aizawa breaths a sigh of relief for some reason. Why was Aizawa relieved? Did she want Senpai to think she's a normal living student? If so, why'd she float in front of her lol.
Sayaka had just asked if Michi if she was ignoring Aizawa because they were fighting, so I imagine that's what she was sighing in relief at. Which is interesting if we assume Aizawa hasn't lost her memories, doesn't know that Michi has, and thinks Michi might be mad at her for something.