LitRPG: I'm AFK, I'm Getting Stronger

"Ding! Hanging System Binding Successful!"
"Ding! A loophole has appeared in the Hanging system, repairing..."
"Ding! Hanging System Error, repairing..."
Wtf!!! Gao Mu thought he could turn the tables and make a comeback just a second ago, but all his hopes were crushed in the next second. 
Who would have thought that the moment the system was bound, the system would suddenly stop working? 
However, in the face of the automatic repair that lasted for 999 years, Gao Mu found that he could still obtain 1 hanging point per day during the repair period. Furthermore, every time it hung up for 1 second, the skill he chose would rise to level 999.
"Hahaha, I'm really going to turn the tables."
From then on, his life had undergone a tremendous change.
It was only a matter of time before he could make a comeback.