The bottleneck of the Nine Tribulations Ancient Emperor is like a cage that has been suppressing Chu Fengmian's power, a shackle, a bottleneck.
Now that Chu Fengmian's power has reached the peak of the Eight Tribulation Ancient Emperor, the next step to enhance his power is to tear through this bottleneck, break the cage.
The repeated increase in a Martial Artist's power is a process of constantly breaking through their own cages, stepping into a higher level where their body can accommodate more power.
The power contained within Chu Fengmian is itself a thousand, or even ten thousand times more formidable than a Martial Artist of the same realm.
Therefore, the cages and shackles on Chu Fengmian are also a thousand, or even ten thousand times stronger than those on an ordinary Eight Tribulation Ancient Emperor.
Breaking these cages and shackles is incredibly difficult.
Throughout history, countless peerless geniuses have been trapped by bottlenecks, unable to break through.
