If you enjoyed the absurdism of the TV series, you'll probably enjoy this movie too.
If that's what you enjoyed the least - spare your time, because there's nothing more to this one.

After completing The Tatami Galaxy, I plunged straight into the movie expecting a similar narrative - a story that hits close to home, perhaps this time (given the title) exploring a similar world from the gaze of a female college student instead.

Even if not, for a movie which piggybacks off the legacy of the original series (sharing the same world, characters and artstyle) I think it's reasonable to expect at least a vaguely similar coming of age/philosophical story that leaves the viewer with more than what they came with.

The movie kicks off by revealing the main character, the unnamed "Black-haired Maiden" and her desire to integrate with adult society and be seen as a peer. Her means do achieve that? Booze. Silly, but realistic for a freshman in college.

We are also introduced to the other MC, Senpai, whose objective is to get closer to Maiden by intentionally running into her as much as he can, playing it off as coincidence every single time. A fitting premise for the likes of him.

Don Underwear, who I can't even think of as a character (only a plot device) is also introduced.

Maiden proceeds to drink and mingle with a variety of questionable individuals, having fun.

At one of the places she and her new bar buddies drink at, there is a brief scene where they illustrate how different time is perceived as you age, but that's as deep as they decide to go with this topic. From around this point on - 15 minutes in, to me both tags "Coming of age" and "Philosophy" become obsolete.

A mix of "plot-relevant" / spoiler-ish and nonsensical events occur, which I'll skip over.

An interesting idea is put forward in a dialogue between the Maiden and the "Book Market God" about all books being connected to each other. Whether what was said was completely fiction or not I haven't checked, but at the very least it was an interesting point that ties into the "red thread of fate" idea which is faintly kept up by the Maiden alone. This topic doesn't get delved into further than this, either.

From that point onwards it's another 40 minutes worth of over-the-top absurdism nonsense much in the same spirit as the original series. Some of it takes the form of a Musical which personally made it much more unbearable.

Unlike the TV series, I don't find any purpose to this story. The red string thing doesn't work, canonically; the whole coming-of-age and "integrating into adult society" which the movie opens with quickly flies out the window and is never brought up again.

Regrettably, I couldn't find a single thing to like about this one.