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

"'Ding! ' Please choose the hang up skill. "
"Ding! Hang up completed, language level + 999."
"'Ding!' Please choose the Hanging skill."
"Ding! Hang up completed, basketball level + 999."
In an accident, the High Priest obtained a system called 'Infinite Hanging'. Who would have thought that the moment the system was bound, the system would suddenly stop working.
In the face of the automatic repair that lasted for 999 years, the High Priest discovered that during the repair period, it could actually still hang up.
Furthermore, every time it hung up for 1 second, the skill he chose would rise to level 999.
From then on, his life had undergone a tremendous change.
It was only a matter of time before he could make a comeback.