Koharu Wakana

The petite female manager/assistant to Gunpei and the Oujou White Knights. She's known for recording most of the football games and catching thrown garbages with a trash bin. She seems to developed a friendship with fellow member Takami and Deimon's Mamori and Suzuna. It was said that she actually becomes manager to evade works from her parents in grocery store, however, her perseverance is carried on in became a manager, and soon she becames a very good manager for Ojou White Knights.

(Source: Wikipedia)