Nijouin Hazuki

Hazuki is another classmate of Satoru's and she also happens to be the manager of the dorm he lives in.

Her personality is best described as rigid. She's very duty-bound, and highly values rules and proper behavior. That, combined with the fact that she's the dorm manager, means that she often has to scold students for things, but they don't hold that against her.

She's very well-respected and well-loved by her peers. She's also a very big fan of historical dramas and owns a respectable DVD collection of them.