Kamui

Black Zetsu, who was instructing Yin Release Obito, overheard the conversation among the numerous White Zetsu clone and immediately shouted, "Shut up! Go up and see what Yichen is up to!"

Black Zetsu was indeed anxious, as Madara Uchiha's corpse was still on it. If Yichen to touch Madara Uchiha's body, then Black Zetsu felt he had to take action personally, even if it meant revealing his strength to Obito. He could simply tell Obito that Madara had given him the power.

Anyway, Madara Uchiha is dead. When he is resurrected, that will be the time for me to deal with Madara Uchiha. There's nothing to worry about.

Black Zetsu and White Zetsu merged and flew rapidly towards the ground, while Obito unleashed Kamui.

"Light Release - World Splitter Jutsu"

When Obito, Black and White Zetsu, and numerous White Zetsu clone arrived in the hall, they witnessed a dazzling flash of white light. One of the White Zetsu clone was particularly unlucky; he appeared right near the Demonic Statue of the Outer Path and, by sheer coincidence, stood precisely where Yichen's Light Release had struck.

The White Zetsu clone didn't utter a single word before it was instantly vaporized by Light Release. A small portion of the Ten-Tails behind it also vaporized along with it.

One of the Ten-Tails' small tentacles was severed by Yichen's Kekkei Tōta. Before anyone else could react, Yichen flashed and retrieved the Ten-Tails' body that had fallen to the ground.

After completing all this, Yichen slowly turned around and faced Obito Uchiha.

At this moment, Obito Uchiha was still wearing the White Zetsu clone he had worn before, with an Uzumaki Mask on his face that only had a hole in the right eye area.

On Obito's side were Black Zetsu and half of White Zetsu clone. Black Zetsu, with his Yin-Yang Face, immediately turned his gaze to Madara Uchiha. Seeing that Madara Uchiha's corpse had not changed, he breathed a sigh of relief, and then he and the others began to examine Yichen.

Yichen was dressed as a member of the Konoha Anbu at this moment. Although Yichen knew that he would be recognized by White Zetsu if he used his Chakra, he still did not want to take off his mask.

For no other reason than that he was still wearing a half-face Sage Face Markings, and his Senjutsu were one of his Trump Card; he didn't want to reveal himself so quickly.

"Yichen?"

Although Yichen was standing with his two clones, Obito Uchiha could easily distinguish Yichen's true form due to the positioning issue when he used Light Release. Facing Yichen's true form, Obito whispered that he had heard Yichen's name before.

Yichen was a contemporary of Minato Namikaze, Obito's teacher, and he had heard many stories about Yichen from Minato Namikaze.

Back then, Yichen was someone on par with his teacher in Obito's mind—a powerful figure he couldn't afford to offend. But now, having just awakened his Mangekyo Obito, Obito declared that the world was so vast that no one was worthy of his attention.

After a soft murmur, Obito, without uttering any further words, charged straight at Yichen.

At this moment, Yichen had not yet dispelled the Light-Weight Rock Technique. Seeing this, he took out a long sword and charged towards Obito at an extremely fast speed.

Yichen wasn't very confident in his Taijutsu, but if the enemy were Obito, Yichen said, "I'm not worried."

Without Kamui, Yichen felt that he could still easily defeat Obito using Taijutsu.

Sure enough, just before the two were about to merge, Yichen struck Obito with his sword. Of course, this was also because Obito didn't want to dodge.

As expected, the long sword sliced through Obito's body as if it were being swung in the air, without any sense of hitting its target.

The long sword was incredibly fast, only lingering within Obito's body for a fleeting moment before disappearing. Immediately after the sword left, Obito's previously ethereal body solidified, and a wooden spike suddenly appeared in his previously empty hand.

Yichen was not surprised at all. The long sword that had just left Obito's body suddenly reversed and plunged into Obito's body.

Obito was startled. Impossible! Yichen seemed to have guessed his ability and made a very correct response. But he didn't dodge immediately. He had the First Hokage's Cells, and he wasn't afraid of exchanging injury for injury. Gritting his teeth, with a cold Obito accelerated the thrust of the wooden spike in his hand.

Just then, Yichen's body suddenly shifted horizontally towards the Demonic Statue of the Outer Path at an extremely fast speed. At the same time, the long sword that was originally inside Obito's body slashed horizontally again, almost cutting Obito in half.

"Impossible! This is the Banshō Ten'in!" Black Zetsu roared in his heart. He couldn't understand how Yichen could Rinnegan's ability. Black Zetsu turned his gaze to Yichen's mask. Behind the mask, the two eyes were perfectly normal. They were neither Byakugan, nor Sharingan, nor Rinnegan.

What's going on?

Black Zetsu wasn't mistaken. In the instant that Yichen and Obito clashed, Yichen simply couldn't dodge Obito's attack in time. However, Yichen had a special technique: using the Banshō Ten'in apply gravity and use the reaction force to slide himself horizontally. Yichen had used this technique when facing Orochimaru's sneak attack in Kirigakure, and now it was extremely effective against Obito.

Black Zetsu was Obito. Originally intending to use his intangibility to launch a sneak attack, Obito was directly countered by Yichen's plan. If he hadn't sensed the danger and intangibly inverted his body again, Obito would probably have been cut in two by now.

Because he had missed his chance to attack Yichen by using his intangible powers again, Obito and Yichen passed each other by.

"White Zetsu!" Obito shouted as he turned around.

Upon hearing Obito's cry, the White Zetsu clone attached to him immediately began to repair his body.

However, this repair will take time, and Obito's fighting strength will be greatly reduced in the short term.

"You know my abilities? You were in that area before, you witnessed Rin being killed by the Mist ninja, right?"

Despite his injury, Obito grasped the crux of the matter, immediately deducing that Yichen possessed his intelligence and quickly concluding that Yichen must have witnessed the entire process of him killing the Mist ninja.

Yichen was somewhat surprised. Was this still the same Xian'er from the intelligence reports? Could the Mangekyo really increase intelligence?

However, Obito's focus was still a bit abnormal; his first reaction was to complain that Yichen hadn't intervened to save Rin.

Seeing that Obito was about to go berserk, Black Zetsu quickly stopped him, as Obito's current state was not suitable for fighting.

Seeing that Obito was stopped by the Yin-Yang Face Black and White Zetsu, Yichen said, "I'm here for Madara Uchiha's Ninjutsu experience. Hand over what I want, and I can pretend I know nothing. Otherwise, your existence will immediately become known throughout the Ninja World."

"At that time, no matter what your plans are, you won't succeed."

Black Zetsu's eyes flashed upon hearing this, and after glancing at Obito, who was still not fully recovered from his madness, he knew that this decision couldn't be made by Obito, so he said, "Alright, we are also willing to cooperate with Iwa ninja."

He pointed out Iwa ninja, meaning, I know who you are, and you have things you care about too. Let's take a step back, and you shouldn't go too far.

Yichen understood Black Zetsu's meaning and said, "No problem."

Black Zetsu directly instructed the White Zetsu clone to go to the place they had just pointed out to Obito and retrieve a scroll. Upon hearing this, one of the White Zetsu clone immediately burrowed into the ground and disappeared.

A moment later, the White Zetsu clone reappeared and tossed a scroll to Yichen. Yichen's main body didn't move, but one of his clones took the scroll, checked it to make sure there were no problems, and then handed it to Yichen.

Yichen put away the scroll and said, "The transaction is complete. I have to go now. Please make way for me."

Yichen naturally knew that Madara Uchiha's collection couldn't possibly be limited to just these items, but it was enough. He didn't want to push Obito too hard.

However, Yichen underestimated Obito. Seeing that Yichen and Black Zetsu had finished their transaction and wanted to leave as if nothing had happened, Obito, unable to bear it any longer, immediately used Kamui and vanished from the spot.

Yichen was startled. Was it coming again? He immediately became alert.

However, this time Obito didn't come this way; instead, he went to the other side, where there was a white tube. Obito directly connected the white tube to the White Zetsu clone him.

Yichen's eyes narrowed. Should he rely on the power of the Demonic Statue of the Outer Path? This was going to be troublesome.

As expected, with the help of the Demonic Statue of the Outer Path, Obito's recovery speed immediately increased, and his strength and speed instantly rose to a higher level.

At this moment, the two clones that Yichen had originally Light Release had not yet disappeared. The Water Clone immediately used Rain Style: Heavy Rain Jutsu, targeting the white pipe that connected to the Demonic Statue of the Outer Path, while the Lightning Release Clone faced Black Zetsu to keep watch.

Just then, dozens of White Zetsu clone suddenly appeared, and together they used their bodies to block the attack from Yichen Water Clone.

After that attack, Yichen never had another chance to attack the pipe, because Obito had already taken down his Water Clone at top speed and was already in front of his main body.

At this time, Obito's fighting skills had not improved, but his strength had increased significantly. He almost always used brute force to break through Yichen's attacks.

While Yichen's close-combat skills were superior to Obito's, they weren't invincible. Although there was a difference between them, Obito could easily compensate with brute force.

Now, Yichen was at a disadvantage. If Yichen hadn't been in Sage Mode, where both his Taijutsu and Ninjutsu were much stronger than normal, Yichen wouldn't have been able to withstand this attack at all.

However, Yichen was not without a chance. After the initial period of adjustment, Yichen quickly mastered the new combat rhythm.

Although Obito is faster and stronger than me now, he seems unable to use Obito because he's connected to the Demonic Statue of the Outer Path.

In this way, Yichen was only facing a weakened version of the Fourth Raikage. After changing his mindset, Yichen quickly began to make use of his advantages.

First, Yichen can fly. Although this hall is enclosed on all sides, it is large enough to accommodate the Demonic Statue of the Outer Path, allowing Yichen to dodge using the Light-Weight Rock Technique.

Secondly, Yichen knew Ninjutsu; while his Earth Style: Earth Flow Wall couldn't stop Obito, they could at least slow Obito down from time to time. Unlike Obito, who fought entirely with brute force.

Moreover, Yichen would occasionally use a Lightning Release, Water Release, or Genjutsu. Obito, who lacked combat experience, was far superior to Yichen in strength and speed, but was still gradually forced into a disadvantageous position by Yichen.

As the battle continued, it seemed that Yichen was about to launch a counterattack. Just then, Obito suddenly charged towards Yichen's Sage Art - Rain Style: Heavy Rain Jutsu, as if his life depended on it.

Yichen frowned. Was he going to use Kamui?

If Obito used Kamui, he would inevitably sever his connection with the Demonic Statue of the Outer Path; and once he lost the Demonic Statue of the Outer Path's power, would Obito, at his normal speed, still be able to hold himself back?

Time was of the essence, leaving Yichen no time to think. To prevent any accidents, Yichen maintained the Rain Style: Heavy Rain Jutsu while forming a hand seal with his other hand hidden in his sleeve.

As expected, Obito passed through Yichen's Sage Art - Rain Style: Heavy Rain Jutsu unscathed.

"It really is Kamui." Yichen felt relieved, but he was afraid that something he didn't understand might happen.

"Wait!" Yichen, who was about to breathe a sigh of relief, was suddenly startled. Why was Obito still so fast even after using Kamui? Yichen subconsciously turned his gaze to the white pipe behind Obito and the Demonic Statue of the Outer Path. "Madman!"

Gritting his teeth, Yichen spat out two words and retreated with all his might. He had just witnessed Obito use Kamui, and not only had he used Kamui himself, but he had also intangibly fused the white tube and the Demonic Statue of the Outer Path.

Although the Demonic Statue of the Outer Path didn't move, Yichen's experience allowed him to instantly spot some details.

This was something Yichen hadn't expected. While Kamui was powerful, Demonic Statue of the Outer Path with just one Mangekyo Obito was simply reckless. Did he not value his life? Did he not value his eyes?

Yichen anticipated Obito's possible tactics, but he didn't expect that Obito had already gone mad.

But at this moment, Obito, who had dodged the Yichen Senjutsu by using Hollowfication, had completed his charge and his attack was about to strike.