I'm not saying this was rushed because of lack of support, cause it must've been really planned as just a volume but the author considered going for more but was rejected or didn't have the chance to convince the publishers. I'm just saying that if it's already announced that a manga would run long, it's really important to give them as much support as you could so it'd continue as intended. Heck, you can even support authors who just release one volumes only so that the next time they create a work, they'd be trusted to have an on-demand work and would be given the chance to have more than one volume!
I'm not forcing anyone to buy, just that if you can, you should. If you can't, spread it to others that can. That's all!

Ok people probably know this already but tend to forget but...
Please be reminded that not all authors have the privilege to choose how long their series will be running. It depends on the editors too if they approve of it, and especially if it does well after that. Considering how the author started this in chapter 1, with how Godai was shown to be sleeping around not minding Yuki and the mystery running around Yuki himself, they might have really intended to have this run for more volumes. But by chapter 3 or so that mightve changed because of editor decisions and other stuff. It's only obe volume, it could've been more, but these are circumstances that happen more often than not.
Please I hope you all understand this before shitting on how the story was presented.
This also reminds us that if a series is slated to run for volumes, we must support the author monetarily to let the publishers know that it's in demand, or else it'll end up getting rushed because of axing.