Considering the situation, the best course of action was clear—Shiyu Uchiha activated his self-developed Phantom Shifting Body Technique. First, he used the Shifting Body Technique to retreat backward, buying himself some time.
Then, during that brief moment, he entered the Mystic · Fire Release · Chakra Mode [a rare state that merges illusionary power with chakra enhancement], further increasing his speed. He easily evaded Uchiha Mikoto's pursuit—a level of skill more than enough to deal with her attacks.
However, Shiyu did not stop there. With one hand still forming a seal, he moved at high speed using the Shifting Body Technique and instantly created a phantom clone. This placed Mikoto in a difficult position—she had to make a tough decision.
Surely enough, she paused for a moment to observe carefully. But soon, she realized she couldn't tell which was the real one and which was the illusion. Therefore, she decided to test them one by one.
After a dazzling display filled with stunning lights and effects, she unfortunately failed to land any real hit. She felt as if both figures were fake, so she stopped paying attention to them.
Meanwhile, her Threefold Illusion Blade was forced to stop mid-cast, and she instead focused on tracking down Shiyu's whereabouts.
Then, both Shiyu's true body and his phantom launched a joint attack on Mikoto, hitting her multiple times—though without causing any actual damage thanks to Shiyu holding back.
Much to her shock, however, she noticed that both figures appeared completely real this time around.
Yet, as she attempted to strike back, both figures vanished like mist. This left her extremely confused and in a very bad mood.
As the older sister, Mikoto felt a bit embarrassed and didn't feel comfortable asking Shiyu directly for an explanation.
Fortunately, Uchiha Shizhi was right there, so she quickly turned to her for help: "Mother, can you please explain what's going on here?"
At that moment, Shizhi's face was filled with joy, as she had witnessed Shiyu successfully mastering one of the most difficult forbidden techniques in the clan—the Mystic · Fire Release · Chakra Mode [a rare state that merges illusionary power with chakra enhancement].
This was the most orthodox and powerful use of the Sharingan within the clan, with the greatest potential. From what she knew, even Madara Uchiha and his brother had once mastered this forbidden technique.
However, when Shiyu demonstrated his Phantom Clone Technique, Shizhi's expression turned serious.
Using the power of her Mangekyou Sharingan [an advanced evolution of the Sharingan granting powerful abilities], she clearly sensed that these illusions weren't ordinary genjutsu or physical clones. Instead, they were afterimages formed from Shiyu moving at extreme speeds, combined with the power of the Sharingan.
Even more astonishing was the fact that these illusions had a very high level of realism—attacks didn't dispel them.
In fact, Shizhi deduced that Shiyu could use these illusions to hide while also applying techniques similar to Space–Time Ninjutsu, enabling him to switch positions between the real body and the phantoms, creating an effect where reality and illusion became nearly indistinguishable.
After analyzing everything, Shizhi looked at Shiyu with great expectation and asked, "Did you create this yourself? Such a clever Shifting Body Technique—I've never seen anything like it before!"
"Yes, this technique came to me as inspiration during my travels across the ninja world. After continuous attempts and practice, I finally succeeded in creating it," Shiyu Uchiha said slowly. He fully grasped how meaningful this jutsu was to him—not just as a fighting skill, but as proof of his own growth.
After saying this, Shiyu deactivated his Sharingan, and the phantom image simultaneously vanished. He then invited Mikoto Uchiha to join him in walking toward their mother's side. They found a comfortable spot to sit down and began explaining in detail to their mother about the body flickering technique he had created.
At the same time, Shiyu skillfully avoided the previous topic of who had won or lost against Mikoto, giving her a graceful way out. He intentionally steered clear of discussing the outcome to avoid provoking her embarrassment—after all, there's always a strange temptation to tease someone when you feel you can't measure up, but once you can, the urge mysteriously disappears, replaced by the fear of making her unhappy.
Uchiha Shizhi quietly listened to his son's explanation, a wave of pride swelling in his heart. Inventing such a unique and powerful technique took more than just talent—it demanded endless effort and deep understanding.
These experiences may have been filled with pain and challenges, but precisely through these trials was his potential fully awakened.
Although he felt heartbroken for the hardships his son had endured, Uchiha Shizhi was even prouder of him.
At only seventeen years old, Shiyu had already become a ninja of Kage-level strength without needing to rely on the Mangekyo Sharingan. Such talent and achievement were extremely rare, even in the long history of the Uchiha clan.
His mother believed that in the battles of the future, her son, Shiyu, would surely demonstrate unmatched strength, and this highly effective survival technique brought her much greater peace of mind regarding his safety.
Mikoto Uchiha's emotions were complex; although the loss in their match left her slightly disappointed, she mostly felt joy. After all, she had realized that the younger brother she had always protected ever since they were kids had now grown up and was capable of standing on his own.
Once he was done explaining, Mikoto asked curiously, "So, what's this technique called?"
Shiyu replied proudly, "[Phantom Shifting Body Technique]! Pretty impressive-sounding name, right?" Truthfully, he had struggled for quite a while trying to come up with a good name and eventually shamelessly stole the signature technique name from Shisui Uchiha.
Mikoto frowned slightly, showing her dissatisfaction: "Meh... it's okay, I guess." However, seeing how clearly satisfied Shiyu looked, she understood that this guy had probably just gotten too lazy to think of a better name.
Helplessly, she ended up accepting the mediocre name since she couldn't think of any better name at the moment either.
Soon afterward, a voice came from inside the house—Saya's. Upon hearing it, Mikoto immediately went indoors and brought out the just-awakened Shisui Uchiha, with Saya following closely behind.
Possibly (due to what she assumed was her pregnancy), Mikoto Uchiha's maternal warmth had become even more pronounced, and her patience toward children had grown boundless. However, this infinite patience only extended toward well-behaved, understanding children. As for those mischievous little troublemakers, they wouldn't be so lucky.
The four Uchiha sat together in a circle. Shiyu Uchiha couldn't wait to consult Shizhi Uchiha about several questions he'd accumulated while developing the Phantom Shifting Body Technique, hoping to get some valuable advice from her to further refine this Ninjutsu.
Some of these questions Shizhi Uchiha was able to answer directly, but others needed to be discussed back and forth before they could figure them out. A few issues were even put on hold for later discussion. Mikoto Uchiha sometimes added her thoughts, though most of the time she just stayed quiet and listened.
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