Well, on the third page, doesn't it look like the speech bubbles are pointing at the girl? I can vaguely see it against the background but they are pointing at her.
What a strong build up to what I assume is the actual story that's about to start. I hope this theme of inferiority is kept throughout the manga, and that the tone remains largely the same. What a great manga!
Thank you for your translations! I think the slang is great. The translator for 'Hensuki' did the same thing (not sure if it was you, but they were similar in linguistics) and I thoroughly enjoyed it. Cheers!