Since this is a green yuri, they're just getting started with the romance. In my opinion, despite the number of chapters,
i reread the two released volumes this week, and they each have like 3 and a half chapters.
chapter 1 of volume 1 being the longest at 18 episodes of the Web series.
What i find really interesting is that, other than the bonus material for the manga releases, there's no additional editing. Which means the stuff Arai releases on the Web is already as polished a product as it can get. But that honestly just makes me wanna see the storyboards