"A mental problem?" Yusuke frowned.
He certainly didn't think Fugaku was calling him crazy. He must be referring to some kind of problem with his mental energy.
In the Naruto world, "mental energy" was a common term, and when one's understanding of power reached a certain level, they would refer to mental energy as "Yin Release."
"Yes, I'm afraid I need to verify this myself," Fugaku said seriously, his expression becoming solemn. "You know, the power of our Uchiha clan is not just the Sharingan. Beyond the Sharingan, there is even greater power!"
Yusuke raised an eyebrow. He knew that Fugaku was referring to the Mangekyo Sharingan. He also knew that Fugaku had awakened the Mangekyo Sharingan, but he had never revealed it, and no one knew what abilities his Mangekyo Sharingan possessed.
"I presume you're talking about the Mangekyo Sharingan, clan leader," Yusuke said.
Fugaku nodded. He wasn't surprised that Yusuke knew about the Mangekyo Sharingan. He assumed that Yusuke had discovered information about the Mangekyo Sharingan from some clan records.
"Yes, it's the Mangekyo Sharingan. The Mangekyo Sharingan's abilities are incredibly powerful, far surpassing ordinary Sharingan. And each Uchiha who awakens the Mangekyo Sharingan has different abilities," Fugaku said.
"Therefore, there's a world of difference between an Uchiha fighting with the Mangekyo Sharingan and one fighting without it. And I, have awakened the Mangekyo Sharingan!" As he spoke, a hint of pride was hidden within Fugaku's serious expression.
Although Yusuke still remained expressionless, he was secretly chuckling to himself.
He also knew that this clan leader was still holding a grudge about losing a sleeve to him in their last sparring match. He was implying that he hadn't used his full strength during their previous encounter.
"However, no one in the clan knows that I possess the Mangekyo Sharingan, so you must keep this secret. Don't tell anyone else," Fugaku continued.
"I understand. So, how do you plan to verify the problem in my mental world, clan leader?" Yusuke asked.
Suddenly, Fugaku's pupils in both eyes spun, revealing a blood-red pattern. However, it wasn't the three-tomoe pattern of a normal Sharingan. Clearly, he had activated his Mangekyo Sharingan.
Fugaku said slowly, "I will use my Mangekyo Sharingan's unique ability to observe your mental world and find the true reason why you haven't been able to awaken your Sharingan!"
Hearing Fugaku's words, Yusuke hesitated. After all, everyone had their own secrets. Yusuke didn't know how much information Fugaku could see about him after observing his mental world.
Seeing Yusuke's hesitant expression, Fugaku guessed his thoughts and continued, "Don't worry. You can sense the entire observation process. I won't actively probe into the secrets of your mental world."
Yusuke thought for a moment and finally decided to take the risk. It wasn't that he completely trusted Fugaku, but he believed that if something went wrong, Ryujin Jakka, hidden in his mental world, could help him dispel Fugaku's ability.
However, the Sharingan was truly known as the "Eye that Reflects the Soul." Perhaps Fugaku had awakened this ability because he had been constantly suppressed in his struggle with Konoha's high-ranking officials, and he was hoping to gain this power that could peer into people's minds.
"I accept this method. But clan leader, you should be careful. There's something hidden in my mental world that can destroy any genjutsu that poses a threat to me," Yusuke warned.
He was both reminding Fugaku to be careful about the Zanpakuto in his mental world and implying that he shouldn't do anything harmful to him.
"Something?" Fugaku was confused, unsure what Yusuke was referring to.
Yusuke smiled, "You'll understand when you enter my mental world and see it. It's also the origin of my nickname, 'Flame Sword.'"
Since he was going to let Fugaku peek into his mental world to uncover the reason why his Sharingan couldn't awaken, Yusuke couldn't hide the fact that he had a Zanpakuto hidden in his mental world.
However, Yusuke wouldn't explain the Zanpakuto's abilities or other information to Fugaku.
Fugaku nodded, "Then let's begin. I'll enter your mental world through my dojutsu. Don't resist."
As soon as he finished speaking, Yusuke saw the Mangekyo Sharingan pattern in Fugaku's eyes spinning rapidly. Then, his vision blurred, and he suddenly had a god's-eye view.
In the center of an endless, mist-shrouded land, a giant sword surrounded by raging flames stood upright. The sword was enormous, piercing the heavens and earth. The tip of the blade was buried in the ground, while the hilt was hidden in the clouds high in the sky.
Countless dreamlike bubbles floated above this land. Yusuke could sense that these bubbles contained his thoughts, memories, or knowledge.
"So this is my mental world? It's an amazing feeling. That sword must be my Zanpakuto, Ryujin Jakka," Yusuke thought to himself.
At this time, Fugaku's figure also appeared on this land. He looked at the Zanpakuto, which seemed to connect heaven and earth, with a shocked expression. He hadn't expected that Yusuke's mental world would contain such a divine object.
Now that Fugaku's figure was there for reference, Yusuke had a more intuitive understanding of the size of the Zanpakuto from his perspective.
Fugaku stood in front of the Zanpakuto, looking very small, like he was standing in front of a building hundreds of stories tall.
"What is this sword?" Fugaku swallowed hard, his voice dry.
"This sword has been in my mind since birth. Its name is 'Ryujin Jakka'," Yusuke's voice echoed across the land.
"No wonder you could easily break through my genjutsu. I didn't expect that your mental world would contain such a divine weapon. You truly are a blessed individual!" Fugaku sighed. At the same time, he was sure that Yusuke had the potential to surpass his ancestor, Madara Uchiha.
Looking at the giant sword engulfed in raging flames, Fugaku said slowly, "The reason why your Sharingan hasn't awakened is this 'Ryujin Jakka'!"
Hearing Fugaku's words, Yusuke wasn't surprised. His voice echoed in the mental world, "I suspected that before, but I didn't feel any adverse effects from Ryujin Jakka on my mental energy, so I ruled it out."
"That's because it has been in your mental world since birth. You can't feel its influence on you. It's like how a normal person can't feel their blood circulating in their body," Fugaku said.
"Moreover, this sword itself hasn't had any adverse effects on your mental world. It's just protecting your mental world!"
"Because of this sword's protection, your mental world is too stable. It's almost impossible for it to fluctuate."
"And the awakening of the Sharingan requires intense mental stimulation!"
Fugaku felt like he had learned a lot today. He had just shown off his Mangekyo Sharingan to Yusuke, and then Yusuke showed him a divine weapon he had never seen before.
"Could it be that Yusuke is the reincarnation of the Fire God, Kagutsuchi? Otherwise, how could a divine sword engulfed in raging flames be in his mental world?" Fugaku couldn't help but think to himself.
The Uchiha clan had a special reverence for flames. The red part of their fan-shaped clan crest represented flames. The Uchiha clan was once known as the "Clan of Fire."
Hearing Fugaku's explanation, Yusuke also thought carefully.
"Clan leader, do you mean that if a powerful mental force is injected into my mental world and can break through Ryujin Jakka's suppression, it could stimulate my Sharingan to awaken?" Yusuke asked Fugaku.
"Yes, that's my understanding. But I don't know how to obtain such a powerful mental force and inject it into your mental world," Fugaku sighed and shook his head.
In his view, Yusuke had almost no chance of awakening his Sharingan. But then, Fugaku felt relieved. With this divine weapon, the power Yusuke obtained might not be inferior to the Mangekyo Sharingan, and it might even surpass it.
After figuring out the reason, Fugaku didn't stay in Yusuke's mental world any longer. He immediately canceled the ability of his Mangekyo Sharingan, and their vision was immediately pulled back to reality. Everything that had happened in Yusuke's mental world had only taken a moment.
Looking at Fugaku, whose left eye was bloodshot and bleeding, Yusuke felt very grateful. Fugaku had really gone all out for him.
"Clan leader, are you alright?" Although he already knew it was a side effect of using the Mangekyo Sharingan, Yusuke still had to show concern.
Fugaku waved his hand, "I'm fine. It's just that my dojutsu power is depleted. I need to rest. If you have nothing else, you can go back now."
After activating his Mangekyo Sharingan, Fugaku could read more information from the stone tablets in the Uchiha clan territory. He was also aware of the side effects of the Mangekyo Sharingan and some information about the Eternal Mangekyo Sharingan.
"Thank you, clan leader. I'll take my leave then."
After leaving Fugaku's mansion, Yusuke felt a surge of excitement he couldn't contain.
Because Yusuke not only had an idea of how to solve the problem of his Sharingan awakening, but he also had a guess about why he couldn't fully utilize the power of his Zanpakuto, Ryujin Jakka, as it was depicted in Bleach!
"Soul power, mental energy, Yin Release chakra. I need to talk to Orochimaru about this."
"Although his forbidden jutsu, 'Reanimation Jutsu,' hasn't been perfected yet, he should have discovered some of its weaknesses. I believe that if I propose to research the jutsu to enhance soul power together, Orochimaru won't refuse!"
Hokage Tower, the Third Hokage's office.
At this time, the Third Hokage, Sarutobi, was sitting in his chair, while Shisui knelt respectfully in front of him.
The Third Hokage took a puff of his pipe and asked slowly, "So, what was his answer?"
The protagonist will appropriately increase his strength at the right time, in the right place, in the right plot, in the right event!
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