Wow.
I have a lot to say, but I'll wait a few more chapters to see how this develops before doing another big write-up.
Though one thing I must mention - I was just going through my weekly manga and kept leaving remarks on mangaka with terrible writing and zero sophistication. Authors with neat ideas, but no sense for how to execute them. Then Dance Dance comes as the last manga to read for the week and, as usual, completely cleanses the pallet. Everything from dialogue to atmosphere and general writing is just top quality as usual chef's kiss
Btw, Junpei has grown again. It kind of sneaked up on me, but I realize his physique has changed so much in the last 60 ch or so. Our boy is becoming a man!