青山七海

Nanami is Sorata's classmate, who later moves into Sakura Dormitory's room 203. Although she is harsh to Sorata, she actually has a crush on him, and everyone aside from Sorata has noticed this.

She left her home to become a voice actress without her parents' consent, and has to live on her own. After she finds herself low on money, as well as noticing that Sorata and Mashiro are becoming close, she chooses to move into Sakura Dormitory. She speaks with a Kansai dialect when she is angry or flustered.

(Source: Wikipedia)