After entering the library, he rummaged through the shelves. However, he could not find what he was looking for.

“Where is it?” He murmured.

Standing in the middle of the library, he scanned his surroundings. Then, he noticed a straw mat.

He walked over to the mat and sat down on it. Focusing his gaze in front of him, he looked straight ahead.

As if he had suddenly realized something, he immediately sprang to his feet and walked toward the shelf in front of him. Once he stood in front of