It was a total rip-off, Feng Jun had been in seclusion for three full days, and still hadn't broken through to the fourth layer of Qi Refinement.
He once thought that he had reached the threshold of the fourth layer, just one step away from breaking through.
But when it came down to actually doing it, where was the threshold? He hadn't even touched the doorknob, he had only seen the door.
In other words, the fourth layer of Qi Refinement was indeed Intermediate Level; breaking through from the initial stage to the Intermediate Level required a very substantial accumulation.
Feng Jun had underestimated the depth of accumulation he needed.
However, this was also normal. After all, this was his first time advancing a minor realm after stepping into the threshold of cultivation, and he had no related experience—he shouldn't make the same mistake in the future.