On average, an episode is like 20 minutes, out of which 3-4 minutes just go towards what already happened and the series song/video.
In many episodes, things are extended a lot although since it's done nicely it doesn't bore much.
The series was good, a bit short but even the short story was extended but since it was put nicely it just matched but the ending completely spoiled the series, it just felt purely incomplete.
I think the makers might have thought of it as a window for 2nd season but if the 1st season doesn't end well people won't recommend it to anyone, ratings would drop and the scope of 2nd season will just decrease.

i myself wont recommend to watch this series.