萩原 ひなの

The protagonist's younger cousin and freshman at Kamijou Gakuen. Her home is very far away; before she could only see her "onii-chan" at relative gatherings. She has looked at her onii-chan as a man rather than a relative since very young. She confessed to her onii-chan last summer hoping to become lovers. After that they have only been able to talk to each other through the phone, but she is unable to abandon her feelings for him, so she ended up enrolling at Kamijou Gakuen. Although she is very shy, she is single-minded and outspoken.