I don't know the full details but did Japan really needed to make a spin off when the main series is already successful & making a lot of progress? Not to bash on the artist (I'm sure they're happy to work on something) but when you compare the two, you can see which one looks better. Obviously it is to milk the series but I don't believe anyone is starved for more content that doesn't add much to the story. I'm aware there is only 1 chapter to work with but it this doesn't expand the lore. If I'm wrong then I'll take my beatings for it. Sorry to complain & thanks for the translations.