Ui Kozeki

Kozeki Ui is one of the students studying in Trinity General School who wields a Sniper Rifle. She is a member of the Library Committee. Ui, the head of the Library Book committee, has first-class knowledge and skills regarding old books, and is called "the magician of the antiquarian bookstore" by those around her. She usually stays in a place called "Antiquarian Bookstore" to decipher and manage old books...