Unable to Leave

The two Uchiha Itachis were both staring at him so intently that Yamanaka Feng could not help feeling unsettled. Usually, when he used his clan's secret techniques, no one watched him so directly.

What was more, those were two pairs of Sharingan—two pairs of Mangekyō Sharingan. He could not help but wonder whether these two Uchiha Itachis might use their Sharingan to copy his clan's secret technique.

There had never been such a precedent, but those were the rare Mangekyō Sharingan. Perhaps they really could copy a technique of that level.

However, he quickly stopped caring about that. Copying it was simply impossible, because his secret technique had failed to activate.

Even though the two Uchiha Itachis had not interfered with him in the slightest, and even though he had used the highest-level secret technique he had mastered, he still had not achieved the slightest effect.

Using the Yamanaka Clan's secret techniques to invade someone else's mind was an extremely dangerous thing. After all, that was another person's mental space, and anything could happen within it.

Moreover, the mind was not like the body. Even with chakra, it had no skin, muscles, or sturdy bones. Training one's mind was even more difficult than tempering one's body.

Thus, when cultivating such an exceptionally difficult secret technique, learning how to escape from another person's mind was extremely important—perhaps even the most important thing.

From the very beginning of their training, the first thing members of the Yamanaka Clan learned was how to ensure their minds could retreat unscathed.

Fortunately, most people's minds resisted outside intrusion. So long as one did not expend too much strength during the invasion, one could generally withdraw smoothly. There were also people whose minds possessed unusual talents, but escaping was usually not a problem.

Yet today, he