Let me guess, the blonde dude is her boyfriend and now he thinks she's cheating on him and we'll have multiple consecutive chapters of completely avoidable drama.
Alright, I appreciate that some of the overbearing rules at Japanese schools can be blamed on cultural differences, but banning snacks after school? Why?!? Are they afraid kids will turn into delinquents from checks notes buying candy on the way home?
The fact that Haruna's HUD has highlighted the speech bubbles on page 29 implies that the speech bubbles are actual physical objects in-universe, and that the characters speak by vomiting up white blobs covered in text.