Informative review as to what you can expect Ep 1: Kujo answering requests she has received from people interested in the anime as well as the four girls. Uses her sharp tongue and sarcasm as usual. Also has fanservice. Ep 2 - 6: Starts off with all MCs taking turns to run Mount Kagurazaka (more like a hill). Ep 2 - 5 then uses mini skits you can enjoy as extra content. Ep 6 includes an OP with new visuals. I would recommend this solely as extra content if you are interested or loved the series. Other than that there is no real reason to watch this unlessyou are some hardcore completionist. The humour is as of what you would expect from the parent story so I don't suggest getting your hopes up for anything great. A good way to pass the time if nothing else.

Main story thoughts if you are interested: https://myanimelist.net/reviews.php?id=371273