C689 Guo Tian Apologizes

After tidying up Young Master Ling's group, Gao Mu happily returned to the school.

Just as he stood at the bottom of the dormitory, Gao Mu saw the worried Guo Tian.

When he woke up in the morning, Guo Tian would check the new book ranking every day.

He looked at the new book ranking and saw that a familiar book had disappeared. When an unfamiliar book appeared