Kurihara Natsume♀

The protagonist’s kouhai. She has a cute appearance, pays attention to everyone, is kind, and is the mascot-esque character that eases the tension. She is worried about getting fat, so she likes to talk about dieting. She has a habit of disappearing when you aren’t looking, but conversely will suddenly appear before you, and is both nonchalant and evasive.

[from Gematsu]