I don't particularly mind angry Beriko. It reminds me of a lot of other main characters I've liked in the past, i.e Kanna from Comprehensive Tovarisch. She ended up being completely likeable even when her character point was supposed to be "graceful," "smart," and "athletic."
Beriko's good points were probably being overshadowed by her jealousy, I assume. What a fun first chapter.
Agreed. I never really get why some people have a gut reaction to her types. Personally, I absolutely love main characters with obvious flaws and insecurities, mostly because they're hilarious, and Beriko's no exception.
I actually hope that Aoi gets a bit more aggressive later on, to spice up the competition even more.
I also realize that Beriko is a very awkward name for a Japanese girl. What's up with that?