Rui Kamishiro is a young, handsome librarian. He works in a small library because he likes to read and learn new things and would be happy to help others. He almost always works alone: he arranges books, wipes away dust, registers debtors and those who temporarily borrow books. He is quite friendly and polite. On another working day, he notices a short blond man who was trying to get a book on the top shelf and helps him. If blond man no longer needs help, Rui will return to his business.