The 'Heaven swallowing vine' was constantly filling the 'Stone of Time' with its pure qi, while Shun Long was greedily absorbing as much as his body could handle.
At the same time, in the 'Monarch's Hourglass', the 81 balls of qi were being compressed again and again.
Shun Long's aim was to compress them all into one ball of qi that would contain even more power than the 81 balls combined.
Shun Long was surprised to find out that, the pure qi from the vine was even more potent than what he had originally estimated.
Little Black also listened to Shun Long as he too started to absorb the qi from the 'Heaven swallowing vine' around him.
After 3 hours, little Black had absorbed nearly one-third of the pure qi inside the 'Stone of Time', until he finally started his breakthrough to rank 4.