In fact, Catherine only brought you to the library of the saint devil's college to study freely. The library of Shengmo college is known as the largest library in the mainland. Zhao fan had only a look outside before. Today, when he went inside, he knew it was really big. The library is divided into four floors above the ground and three floors below the ground. The teachers and students on the four floors above the ground can view the books at will, while the books on the first and second floors below the ground can only be seen by the teachers. Even the books on the third floor below...