Chihaya Suzuhara  

, 鈴原ちはや

Kazukis friend who enjoys spying on others and speaks with a Kansai dialect. She's more receptive to Yuujis crude behavior than Kazuki, and she doesn't mind being the focus of his attention. In fact, she even shows minor displays of underwear. At one point, she jokes that if she didn't want Yuuji, she would take him instead. This causes Kazuki to feel down, especially since they had a good relationship.