sparklermonthly.com/?post_type…If you want to read Off*beat go here.
Volume 3 is not out, but the manga is about to be complete with the next two releases.
After that it'll prolly take some time for it to actually release the digital and physical versions. If you want to read the past chapters before/ the book is release, you may have to pay for a subscription. But 5 bucks is really cheap. Since you get to read and see exclusive things for a month. Have fun.