C548 Familiar Number

Wake up, and don't wake her up!

Nudge pursed her lips and got out of bed. Her notebook was open on the table, causing her to stare blankly at it.

The notebook that was originally clean and empty was now filled with notes. The handwriting was clean and vigorous. On the book, every important point was circled by the red pen.

Carefully flipping through the book, Qiao Han lifted his lips