So what is the highlight of Vol 9?
A grown man slugging a ten-year-old girl in the face? No, that happens in just about every volume.
A revolt among one faction of the school that leads to dividing the buildings into enemy territories. No, that's been coming a long time.
The attack of the giant, flesh-eating starfish. Sorry, Umezo-san, you will have to try harder than that.
Sho's sudden attack of appendicitis? Really, after the bubonic plague outbreak some issues back, it just doesn't seem like that big of a deal.
The decision to operate on Sho using only an exacto knife and a pair of scissors? Now we're getting somewhere. Combine that with Sho's mother's mystic communication through the voice of the crippled girl who for some reason is suddenly near death, and you have one hell of an issue.
I can't believe there is only one volume more to go.