To be honest the story and art was great
Sadly if you want to know why the series still stuck at volume 1 , it was because the authour decided to drop it off in 2017, in twitter he say he was unmotivated.
Being mangaka is hard, very tired and exhausting, and if you are'nt making a hit series, then you can guess that he need to take normal job for his living expenses.
also one of his work Mizuiro Idea , got axed, so i think it was a huge blow to him too
Even so he still love drawing, his pixiv and twitter was still active, i followed his twitter and it seems he decided to continue the story in 2018. I think in one of his twitter he asked his old editor that he want to continue the series despite abandonding it for 2 years and the editor say yes you can continue it and supporting the authour/artist. We can thank the editor for that hehe because we can see the continuation of the story.
I hope that this manga was translated in my country or in english, i will surely buy it.