Huhn... I guess we'll be treated now to the whole story of Asuka's torrid affair with sempai... and right now we're being shown the first steps, which means there's still all of the relationship development and eventual collapse coming up.
It'll be some time before we get to enjoy more Asuka x Ayako goodness.
Also, @Blastaar:
I count 26 “installments” of this series (chapters, chapters +, extras, omake, etc).
I also count 47 flashbacks or other deviations from the narrative present as established in Chapter 1. (These are defined as “visual representations of events of the past.”)
11 installments open in a flashback; only 5 (including the Cat Day extra) take place entirely in the narrative present.
That was a fantastic job you did. Color me impressed. Kudos to you! 