The Alchemist in Bleach

"Captain Unohana mentioned Tenshin Ichiro... who also participated in this battle, and his injuries are even more severe... He is currently in a near-death state... unconscious..." After saying this, he lowered his head tightly, cold sweat pouring down his face. He was almost scared to death after finishing the story!

Because in his perception, the usually gentle captain of the Fourth Division suddenly unleashed an unusually terrifying killing intent!

"Lie! Calm down!" the captain hurriedly tried to stop him, but the furious captain Unohana didn't care about that.

The braid hanging in front of her chest came undone, revealing hideous scars, along with a terrifying killing intent!

Her title as the greatest villain in Soul Society (there's no official title for her, but she's practically the greatest) was earned through countless battles!

By the time the captain finished speaking, Captain Unohana had already practically slaughtered her way through half of the mansion!

"The swastika is all gone!"

With a devilish whisper, crimson blood seeped from every corner of the mansion, turning into blood blades. In just a few breaths, Captain Unohana slaughtered everyone in the entire mansion!

Standing outside, Kyoraku Shunsui swallowed hard. He hadn't seen Unohana Retsu like this in centuries. His voice trembled slightly as he asked, "Master... what's the background of this Tenshin Ichiro?"

"Tenshin Ichiro? A genius with exceptional talent! In less than six months, he mastered all of Retsu's return techniques. Then, through Retsu's strong recommendation, he met Yusenki and spent another six months learning all of Yusenki's return techniques, except for Yusenki's secret techniques! Retsu is grooming him to be the next captain of the Fourth Division, and this reaction is not unusual..."

The captain's words left the group speechless. What kind of incredible resume was this?

As they spoke, everyone saw Unohana, still radiating murderous intent, riding her Zanpakuto, Nakushiki, and rapidly flying towards the Shinigami Academy.

Seeing this, the captain said, "It seems we don't need to worry about things over there. Let's go. We've killed so many nobles this time, we still need to give an explanation to the Central Bureau of 46."

Kuchiki Ginryu sneered, "An explanation? Ha~ We need them to give us an explanation. They actually dared to make a move against the next head of one of the four great noble families. They must be quite powerful!"

A cold glint flashed in Shihōin Seigan's eyes: "Whatever the Kuchiki family head needs, just say the word, and Xing Jun will cooperate fully! Even if it's a collateral branch, it's still one of the four great noble families, not to mention they actually dared to attack the main family..."

The two left as they talked. The captain looked at the mansion, which reeked of blood, and his narrowed eyes opened a crack, revealing an endless cold light!

"It seems that there are quite a few traitors in my team. Even the Shinigami Academy was attacked... and even a genius like Ichiro almost died... Shunsui, I'm leaving this matter to you."

Kyoraku Shunsui pulled his straw hat down to hide the cold glint in his eyes, and replied, "Yes, teacher..."

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Chapter Twenty-Nine: Death and Zanpakuto

In the pitch-black space, Ichiro's appearance brought light to the world, but the range of the light was very limited, only about two meters.

Ichiro slowly opened his eyes, first raising his hand to look at his body in confusion. If he remembered correctly, his current body should be a pineapple. Let alone standing, it was already a blessing to be alive. Then he looked around and finally understood his current situation.

If nothing unexpected happens, it should be in the spiritual world, but unlike the scene I entered before, there are no points of light everywhere, only endless darkness.

"Ah~"

Ichiro sighed; he roughly knew why things had turned out this way…

The spiritual world of a Zanpakuto reflects the Shinigami's state of mind. For example, in the original work, when Ichigo is sad or confused, it rains in his spiritual world, and when he is extremely confused, it can even turn into an underwater world!

However, Ichiro's situation is somewhat different now. He is not confused. There is only one reason why his mental world has become like this: his Zanpakuto has actively severed its connection with him...

With another sigh, Ichiro slowly walked through the dark space. To be honest, he did regret this, because it wasn't his intention. Otherwise, he would have mastered Shikai through this method long ago.

He could do anything that was possible in a state of absolute rationality; the only difference was the level of precision. Yet, he still did not choose this brutal method.

Instead, he thought of continuing to study Zanpakuto and then simulating Shikai without using Zanpakuto.

This is not impossible. Ichiro's research found that the Shikai and Bankai of a Zanpakuto are mainly composed of two aspects: the increase in spiritual pressure and the improvement of the sword itself.

The increase in spiritual pressure, simply put, means that after a Shinigami has been inputting spiritual pressure into his Zanpakuto for many years, he forms an existence similar to himself. When he performs Shikai, a certain circuit is formed between the Shinigami and his Zanpakuto, connecting their spiritual pressure. Therefore, after Shikai is completed, the Shinigami's spiritual pressure will increase by 2 to 5 times depending on the completion of the circuit. Bankai will complete an even more complete circuit, increasing it by 6 to 10 times.

However, this amplification is not permanent. Once the circuit between the Zanpakuto and the Shinigami is formed, it will never disappear. Through this circuit, the Shinigami's spiritual pressure will grow rapidly for a certain period of time. When the normal spiritual pressure reaches the level of the released spiritual pressure, the amplification will disappear.

But that doesn't mean the Zanpakuto is useless!

The enhancement of a Shinigami by Shikai and Bankai has two aspects: spiritual pressure and the sword itself.

Shikai elevates the power of the Zanpakuto, generating various abilities. Bankai is a further enhancement on this foundation. Of course, for some Shinigami, the Bankai becomes less useful in actual combat after its power increases, such as Soi Fon's Zanpakuto...

Shikai is a two-hit kill. Against opponents with similar spiritual pressure, as long as your technique is superior and you can hit the same spot twice, you'll win. Bankai, while becoming a one-hit kill, is... well, an assassin suddenly turning into a turret... those who know, know... This is even worse than the bald guy from the Eleventh Division...

However, judging from the base numbers, most Bankai have become stronger.

So Ichiro naturally had his eye on it. Once the problem of spiritual pressure amplification was solved, the Shikai Bankai was essentially just an evolution of the sword.

In other words, as long as Ichiro can achieve the mimicry of spiritual pressure's Shikai and Bankai, and then create various Zanpakuto, he will be able to possess all sorts of Shikai and Bankai!

Hmm... Does this sound familiar? That's right, Ichiro's idea came from a fanfiction he read in his first life. However, those fanfictions had Zanpakuto with the ability to copy, while Ichiro was using his skills to create a new sword. The result was the same, but the process was different.

The feasibility is quite high, since everything in Soul Society is made of spirit particles, and Zanpakuto are no exception. In addition, what gives Ichiro confidence is Soul Society's classification of Zanpakuto.

As we all know, Zanpakuto are divided into four types: rule type, illusion type, devil type, and healing type. We will leave the other three aside and focus on the devil type.

Why is it called the Ghost Path System?

Because the effects of Zanpakuto are similar to those of Kido, but more convenient.

So if I forge a knife with the same effect, does that mean I've completed the copy?

Ichiro thought this way and did this way. By analyzing and decomposing Asabu, he basically mastered the mimicry Shikai of spiritual pressure. Furthermore, through his vast knowledge of Kido, he had already forged a Kido-type Zanpakuto. It can't really be called a Zanpakuto, it can only be called a weapon. There were still some key points he didn't understand, so he stopped.

And that's how Ichiro's relationship with his Zanpakuto cooled down...

Simply put, if we compare Shikai to pursuing a girl, then most people would communicate with her every day, act like a simp, and eventually win her over, but Ichiro is different!

He wants a goddess, but he won't fawn over her!

What did he do?

Find someone who resembles the goddess (a knife), analyze them, even dissect them, to understand their similar anatomy, and then cater to their desires, satisfying them physiologically…

Naturally, the Zanpakuto distanced itself from him, but Ichiro didn't really care. The relationship between a Shinigami and a Zanpakuto was special, and he only attacked other Zanpakuto, so there would still be a chance for them to communicate in the future, if it weren't for this misunderstanding...

Thinking about it, Ichiro sighed again. This incident made Ichiro want to completely bury the skill of absolute rationality.

No one is perfect, and nothing is too small to be true.

Pre-setting can solve some of the drawbacks, but not all of them.

In his previous life, Ichiro often used this tactic because he mostly acted alone, so he didn't have much to worry about. But things are different now. The Shinigami's system is different from that of the State Alchemists, so it's basically impossible for him to act alone. Absolute rationality will eventually cause him even bigger trouble.

Although this problem is already quite serious...

Thinking about it, Ichiro sighed again.

Intuitively, if he continues on this path, he should be able to find his Zanpakuto. The problem now is how to persuade him... no, how to apologize!

"Ah~"

Just as Ichiro sighed again, a plaintive girl's voice suddenly appeared. After a slight pause, Ichiro looked in the direction of the voice and saw a girl in palace attire with her arms wrapped around her knees, her Zanpakuto piercing between her arms and resting on her shoulders. Her eyes were slightly red as she looked at Ichiro with a melancholy gaze.

"What? You think the power of the stolen item isn't enough, and you're planning to steal the Bankai as well? It's fine, go ahead and do it. Your alchemy can do anything..."

Ichiro was a little embarrassed. He wiped his hands on his clothes awkwardly and said, "If I said that what just happened was an accident, would you believe me?"

"Heh~ I believe you, of course I believe you. It's just Bankai, right? Take it, just like before, take it with your alchemy."

After saying that, the girl closed her eyes, raised her head, and revealed her jade-like neck with red claw marks.

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Chapter Thirty: This woman has finally gone mad.

"..." Ichiro wasn't an idiot. If he really started fighting now, it would be the end for him. Even if he did have the ability, he couldn't use it.

However, Ichiro breathed a slight sigh of relief at the Zanpakuto world's performance. Since it was acting out of spite, it meant there was still room for maneuver.

After considering for a moment, Ichiro said, "You and I are two sides of the same coin. You know a lot about me, so you should understand that what happened before was not my intention, but a rash action under the influence of absolute rationality. I can assure you that I will never use the technique of absolute rationality again, and I can even discard the mimicry Zanpakuto."

"What about alchemy?"

"No." Ichiro refused without any hesitation.

"Heh~"

"..." After a moment of silence, Ichiro sighed, "You should know very well how important alchemy is to me. I can agree to anything else, even let me take time to practice slashing techniques that I'm not good at, but there's no room for negotiation when it comes to alchemy."

The world paused for a moment, then asked with a hint of resentment, "Why? Alchemy can decompose and reconstruct spiritual particles, and so can I, and even more!"

"But you can only decompose and transform into spirit particles. Spirit particles are just the basic substances that make up the Soul Society, not the real world. What I pursue is absolute truth, not relative truth that is limited to the Soul Society!"

"Absolute truth can never be grasped!"

"I know, but this is my dream now."

"Hmph! Then use your alchemy to forge a Zanpakuto that suits your taste! Why come to me? Just dismantle me, it's not like it's the first time you've done it."

The world gave a soft hum, shifted its body slightly, and turned to face Ichiro.

Ichiro paused for a moment, then his furrowed brows relaxed, and he said, "So you're still angry about this... But there's one thing you're wrong about. I've never disassembled a Zanpakuto. I only disassembled Asauchi, which is different from a Zanpakuto."

Sekai tilted her head slightly, seemingly quite interested in the topic, though not obviously. However, this didn't escape Ichiro's notice, who had been watching her closely. A smile flashed across his face, and Ichiro continued.

“Asauchi is just a rather special weapon, but Zanpakuto is different. A complete Zanpakuto consists of three parts: the blade, the spirit, and the Zanpakuto’s independent consciousness. As my other half, don’t you think this is similar to a certain forbidden element of alchemy?”

Sekai frowned slightly. Although Ichiro was right, she was indeed Ichiro's other half, but she didn't know all the information. She only knew a small part, so some memories were not very clear.

Ichiro shook his head and explained, "The three elements of human transmutation are body, soul, and spirit. The blade is equivalent to the body, the spirit of the blade is equivalent to the soul, and the consciousness of the Zanpakuto is equivalent to the spirit. Do you understand now?"

"!!" Sekai, forgetting her anger, stared at Ichiro in shock. She knew to some extent what human transmutation represented, and of course, she also knew that this was one of the things Ichiro planned to research in the future.

"So, you didn't get what you wanted? Should I say congratulations?" Seemingly sensing that things weren't going well, Shijie immediately put on a cold face and retorted sarcastically.

However, Ichiro had no time to pay attention to the world's changing emotions. Instead, he said with a hint of lingering fear, "Congratulations? Heh~ You should feel fortunate that now is not the time to perform human transmutation. I don't know if seeing the 'gate' is just the effect of that transmutation circle, or if you can see it simply by performing human transmutation. If it's the latter..."

"Isn't that great? You can have the Gate of Truth you want."

"..." Ichiro stared intently at the world until he felt a little awkward before saying, "Alchemy is about equivalent exchange. If I were to simply forge one Zanpakuto into another, then I would only need to replenish some spiritual particles to complete the equivalent exchange. So, what would I use to pay the price for seeing 'Truth'?"

No matter what I see, I will lose what is most important to me, and nothing is more important than you.

The world looked up at Ichiro with some surprise, bit his lip, and said, "That's not what you just said. You said you could never give up alchemy!"

"To clarify, what I meant was always that your abilities and alchemy are not equivalent, not you, world. You are my other half, and you are the only one in this world who truly understands me. Therefore, you should know what I lack most..."

The corners of Sekai's mouth curved slightly, then her small face turned cold as she turned her head away from Ichiro: "I don't know, I'm just a Zanpakuto!"

"...A Zanpakuto...That's why I can't lose alchemy, because I need human transmutation! Even the strongest man can't lift himself..."

"Enough! Get out!"

With a sharp shout from the world, Ichiro's figure vanished from the spiritual world in an instant.

……

"Hi~"