The system had upgraded to the seventh level because Li Yunmu had accidently cleared some unknown condition. With it, the system had finally advanced to the seventh level after remaining at the sixth level for a long time.
Clearly, the three functions above the skills should be the new changes which had come from the latest upgrade.
The first function was forgetting comprehended skills. After close inspection, he found this function was exactly as the name implied. It assisted the host in forgetting the surplus useless or not important skills.
This would clear up the long list in his arsenal, so when the shadows were killing monsters, they wouldn't be slowed down by an excessive amount of foundational skills. With that, the proficiency of the necessary skills would increase much quicker.
