Here's a bit from a Kamoshida Hajime novel (Just Because!):
I've reviewed the Wikipedia article on Japanese punctuation as well as some related questions on this Stack Exchange but am unable to figure out what this dash-like punctuation at the beginning of each of these lines is, and how to type this. I've been using U+2500, BOX DRAWINGS LIGHT HORIZONTAL, for this because two of them combine nicely without any space inbetween (on all my devices and apps), like in the image:
Alternatives I've considered are: U+2015 (HORIZONTAL BAR), em dashes, and katakana continuation marks (though none of these combine perfectly without spacing?):
――私、決めたから (two horizontal bars)
——私、決めたから (two em dashes)
ーー私、決めたから (two continuation marks/chouonpu)
What's the right answer here? How should I properly represent this in text?