天条 羽耶

The elder sister of Yukiha. She takes care of him in place of their mother. 

Haya works part-time as a nurse for Yukiha's school.

She has a very steady character, and takes care of her younger brother very well. Therefore, she is also very popular at his school.

Haya has strong feelings for her younger brother to the point where they kiss each other on the lips every single day.