I don't understand the slug symbolism
i think those are leeches? at least the symbolism would make more sense
Those are almost certainly slugs - they've shown up in the story before, and leeches don't have eye stalks like that, at least any species I've ever come across.
In went looking, and according to the several sites I found, Japan sees slugs as both harbingers of rain and connected to rain gods, as well as symbols of patience and perseverance, and adaptability.
As best I can figure--they're an indication of Moe actively attempting to suss out what Akemi's goals and motives are, and change and adapt to this new set of circumstances where Akemi is managing to actually take Gotou away.
Given the previous set of chapters introducing her half-brother and
his whole talk about "figuring out the rules of the game in order to win", I see this as Moe confronting Akemi in a symbolic sense, as the "slugs" leave Moe's body and invade Akemi's...representing Moe slowing down to actually sort out Akemi's motive, and calming herself to act more methodically and deliberately once she understands how to "win".
And given she goes from having a near-panic attack with Gotou to smiling at Akemi and declaring she'll move out, it would seem she's figured out that patience is the way forward, which would fit that symbolism that I found.
That, and slugs are...well, "generally" considered vile and banal by many people. Slimy, grotesque looking, which would all fit the mood and tone of this series, at least on some level. So using them visually like this further enhances that sense of discomfort and unease based on peoples' predilictions of the animal and how they're incorporated into this manga's visuals.