Sure enough... it was so hard!
Looking at the dusk as the setting sun had already sunk behind the western hills, Chiba let out a long sigh, then casually slid the Japanese-style door shut with a "click."
By now, Chiba had spent the entire afternoon practicing that Forbidden Jutsu. If his stomach had not been growling so badly that he could no longer continue, he probably would have kept training.
And throughout the entire afternoon, Chiba had only one impression—or rather, one gain from his training.
That was...
Hard! Extremely hard!
Completely unlike the Eight Gates, the difficulty of this Forbidden Jutsu was practically nightmarish. It was difficult enough to make Chiba realize just how naive he had been before.
He had completely chosen the wrong reference point!
As a ninja who possessed a Forbidden Jutsu, Chiba had naturally used the Eight Gates as the benchmark for judging this Forbidden Jutsu's difficulty.
However, he had never imagined that the difference in difficulty between these two Forbidden Jutsu was practically on another dimension.
If the Eight Gates had a difficulty rating of one, then this Forbidden Jutsu had a rating of a thousand, or even ten thousand.
A Forbidden Jutsu like the Eight Gates, which anyone could practice and learn at least something from as long as they worked hard, simply could not be compared to the Forbidden Jutsu Chiba was currently learning, which required extraordinarily high aptitude.
Just converting the raw, attribute-less Chakra used by this Forbidden Jutsu into the special Forbidden Jutsu Chakra it required was already harder than climbing to the heavens. Chiba even felt that it was more baffling than performing Nature Transformation.
After an entire afternoon, let alone knocking on the door, he had not even crossed the threshold of converting the basic Forbidden Jutsu Chakra