>>281642029
Well Masaki has been the focus of the last 7 chapters.
Honda is Michi's twintail friend who's big into DeLphinus and Aizawa.
Masaki is Honda's childhood friend who almost made it into DeLphinus because Honda pushed her to be an idol.
Masaki is big into Michi now partly to hurt Honda by driving her and Michi apart but also had a crush on Honda in the past.
The last few chapters have been very straightforward but I think only because we're deep in the explanation phase of a subplot. The volume should have ~2 more chapters left and I expect shit to get wild again. Specifically this nurse's office affair seems as bad for the status quo as the concert. Michi can't deny her friends are gay for her and Michi's going to recognize Aizawa's possessing Kasumi, which will likely have heavier consequences this time. Personally I'm holding out for Aizawa getting stuck in Kasumi (since Kasumi's hole is getting harder to escape) so someone is forced to interact with her.
I'm tooling with the character chart for vol5 but apart from Masaki there aren't many major changes.

>>281644822
No and I don't have it but I can get to it if you upload it.