@phozon That must include the extra stories, which are counted with decimal points here. The last chapter is the next one. Trust me, we scanlate from the volumes. You can see that the number of chapters at the bottom of the series front page here is 143, which means there's one more if you count the extras, too.
In fact, the real number is 145. There's a promotional extra that was released with the first chapter of the author's next series,
Change the World. We have already translated, cleaned and redrawn it, and it will be released along with the final chapter.