After Yoshikuni heard the new girl being introduced, she felt like saying something when suddenly the entire class became rather excited about the new girl. Deciding that the humans were very stupid at sometimes, Yoshikuni merely smiled at the new girl who introduced herself. She didn't feel the need to do the same, as she felt her voice would not be heard under all the noise, and figured that if the girl wished to do so, then she could always approach her later on.

Slightly leaning back in her chair, Yoshikuni hoped all the noise would calm down soon enough, though she realised that as long as the people remained the way they are, then the current situation isnt likely to change soon. Its not like it irritated her too much, as it was a pleasant change in her eyes to see everyone so lively, its more that she wished that they would have better reasons to be like that rather than be excited over a new girl in their class.

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Chou was still somewhat tired as the new girl, Karen Kuromori, introduced herself. She closed her eyes and counted to three, and indeed, the wild excitement over the new girl had come quickly. She herself decided that it would be rude to not introduce herself, so she stood up, but after thinking about it for another moment, she realised that she wasn't capable of introducing herself. 

Looking around, she saw a few other students that also stood up from excitement, so Chou decided to sit back down, figuring that once Karen decides to meet all the people in her class properly then she will be approached by her. It certainly looked like Karen had an outgoing personality from her initial introduction. She just kept looking around a few more moments before moving to draw random things in her notebook, waiting for the excitement to be over.