Lin Lin opened the box's contents and saw some quite thick books with plain black covers that were already dull. If you look at the inside of the book from the side, you can see that the paper in the book has turned yellow because it has been too long.
Lin Lin furrowed her brows when she felt she couldn't open the book. An Xiu Ming immediately opened his eyes wide when he saw the book. Of course, he felt familiar with the book. But he was still very hesitant to tell Lin Lin.
So An Xiu Ming chose to remain silent without telling Lin Lin what was on his mind. Maybe later, when the time is right, he will ask Lin Lin.
An Xiu Ming also saw the confused look on Lin Lin's face, who couldn't open the book. Because of that, An Xiu Ming opened his mouth to give Lin Lin a hint.
