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In the manga Shinya no Dame Koizukan (深夜のダメ恋図鑑), I spotted four different
symbols (marked in red in the picture). The Ψ symbol is even repeated a few
times, but I can't figure out what it means.

I've tried searching up Japanese symbols and have gone through Wikipedia's
[List of Japanese typographic
symbols](https://en.wikipedia.org/wiki/List_of_Japanese_typographic_symbols)
etc. but I can't seem to find the following symbols anywhere. What do they
mean? Thanks in advance for your help!

Edit: They look like Greek, but from the context, I believe the speech should
be in Gifu dialect and there shouldn't be any Greek used :(

[![enter image description
here](https://i.stack.imgur.com/jaMv7.jpg)](https://i.stack.imgur.com/jaMv7.jpg)
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2020-05-03T09:40:43.467
77017
2020-05-04T16:28:17.783
2020-05-03T19:35:37.313
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question
manga orthography punctuation symbols
What do these symbols in manga mean?
This seems to be an encoding/typesetting issue and the "symbols" are indeed
Greek letters Ψ, Π, π that seem to be displayed instead of `!`, `?`, `〜`.

There is another typographical oddity that suggests something went wrong here:
the _ch­ōonpu_ (long vowel marker) `ー` (for example in はーい or おーいっ) should be
_vertical_ in vertical writing, but it appears horizontal here.
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2020-05-03T11:32:34.733
77020
2020-05-03T11:32:34.733
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77017
answer