The typical "origin story" of most exhibitionism-tagged h-manga heroines taken for a laugh and somehow kept wholesome and ecchi at the same time. At times a bit cringey. Mostly unrelated to the parent show - it happens in the same school so some of the main characters there are side characters here but there is no meaningful significance behind their cameos. The other link is the sudden "fall in love" ending, but it is such a minor part of this story that even that is a stretch. Rather than 6 episodes, it is 6 scenes of a single episode that were split for some reason. Eachis 3-4 minute long when you exclude the credits.

In some ways it deserves a better score than the parent series - it has more focus, development and a clearer conclusion.