Yuuko plot hole?

[mainframe004]

Of her, there are many copies -clones- and they wander the halls in secret, plotting dominion over all they observe. None suspect so innocuous a host as the quiet librarian, and none question her presence wherever she may be found; for behind her warm expression there is a sinister singularity of thought bent on uncovering all the secrets that lay hidden in Yamaku Academy.

Soon, they know, their long-plotted plan will be brought to fruition and all the world will be cast in her long shadow, forever absorbed into that singularity and twisted by her malicious intent. Stalking in secret, she will rule them all, and there is nothing to stop her creeping advances. Beware Yuuko or rue the future, coming sooner than expected, and be wrapped in the writhing bliss of eternal torment.

This post just opened my eyes to the truth.

[Akros]

let's get "sciency" in here. This is clearly like the Schrödinger's cat experiment.
Imagine Yuuko being the cat, well, you don't know if she is going be in the library or at the Shangai unless you check, and everytime you check you are creating a kind of "parallel universe" in which Yuuko is at the desired location and another one in which she is not where you want it to be, but the fact that you've checked changes the whole result.
It's a really dumb way to view this theory, but yeah, it's kind of like the same.

also, the femininist clone army is a good theory and it explains why kenji dumped her...

[CPU]

let's get "sciency" in here. This is clearly like the Schrödinger's cat experiment.
Imagine Yuuko being the cat, well, you don't know if she is going be in the library or at the Shangai unless you check, and everytime you check you are creating a kind of "parallel universe" in which Yuuko is at the desired location and another one in which she is not where you want it to be, but the fact that you've checked changes the whole result.

This is brilliant. This makes more sense than when I tried to understand Schrödinger's cat the first time around.

[demonix]

I also recall word of Yamaku having more than one librarian and Yuuko is simply the one present most of the time.

Good catch (It's during the festival when you're heading for Lilly's route).

Yuuko works part time at the library and part time at the Shanghai.