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Yeah Takanaga-sensei confused everyone when she said she was "finishing the last Koisuru Boukun arc". But she just meant "last major arc". She keeps as posted via Twitter, so check that for the fastest info on Vol.10 + all projects.
Hope that helps! (Don't worry, I'm e-stalking her too ... Waitingggg unghhh).
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YOU ARE AMAZING TOOOOOOOO! (づ ̄ ³ ̄)づ.I realized that every chapter is translated by different scanlators, so I think it takes time for this mangago sites and other manga sites to find out the english sub version from some scanlator groups, and about 4 months after the raw they can update the new english sub. therefore, don't worry, we should calm down haha (≧∀≦)
hey-hey this manga is not complete... volume 10 chapter 1 has release it