Akiba, the Imaginary Ninja.
Akiba's technique was not only based on N*ruto, but rather on his son...
Based on an eye control technique of chaos. In fact, another thing he discovered, is that for him, understanding the logic of certain things, even if he couldn't actually do them himself, would benefit his "imagination" technique.
For example, Viktor's chaos control, which he explained to his family. Thanks to this, Akiba was able to create this technique, which is based a bit on how chaos works, filling the points he can't do with mana with his "imagination".
Of course, in the end it is only an imitation, but thanks to this Akiba was able to form his "third eye" on his forehead , one made of a special mana of his which he calls "imaginary power", imitating the eye of the great lord that Viktor possesses, which gives him great power.