so... it is largely a waste of time. I kinda regret waiting 3 hours for something to happen only for some really uninteresting scenes to pop up, and only after a lengthy backtracking to select the correct choices was I able to unlock them all. one of them is even about feet which is disappointing to say the least. one of the girls also for some reason looks like a lamia and she got way too much attention. the Second Drip is a test on how blueballed you can get before giving up.
the demo one says that it focuses on one of the characters aka azalea kinda like how nekopara has each game focus on 2 of the characters
they also seem to use the same description on all of the games in the series which makes it kinda hard to separate which games which