Shiki Natsume

A girl who goes to the same university as the protagonist.

People view her as a cool, calm type of person, but in reality, that isn't the case. She simply has trouble expressing her emotions.

She's also rather innocent, so even the slightest mention of anything sexual will have her blushing from ear to ear.

At university, she's particularly annoyed by the carefree, fraternity types that love to drink. She hates them, and as such, avoids them as much as physically possible.