Those who die are often the most beautiful, like Ulquiorra's feelings for Orihime in the original work, just as Momo Hinamori for Tōshirō in this timeline.
In the original work Momo Hinamori and Tōshirō eventually become estranged, with virtually no further connection between them. This is because Momo Hinamori repeatedly hurt Tōshirō. In the Momo Hinamori work, Tōshirō as a backup plan. If you think Aizen is right, go save him yourself; what's the point of sending Tōshirō?
And more than once, she believed Aizen was a good person, that Aizen hadn't killed many people, and that he only killed those who deserved to die —in Aizen innocent. Therefore, she told Tōshirō not to kill Aizen; if Aizen killed Tōshirō, then Tōshirō deserved to die.
Even after Aizen's final capture and subsequent re-release in the Thousand-Year War arc, Momo Hinamori's opinion of Aizen remained unchanged. It seemed that the deaths of Kaname Tōsen and Gin Ichimaru were in vain. Therefore, it's not unreasonable that Momo Hinamori went from immense popularity upon her initial appearance to near-universal hatred later on. This author, responding to the requests of many readers, killed her off.
But problems arise after she dies, because the dead can no longer harm anyone; only her most beautiful side remains, especially for Tōshirō. And the most crucial issue is that Tōshirō himself stabbed Momo Hinamori to death.
He couldn't forgive himself. The Little Lion had spent the past ten months in constant agony, his heart overflowing with anger, resentment, and grief.
As mentioned before, he is the captain of the Tenth Division. The naturally strong-willed Tōshirō has to fulfill this role, and he can't let his emotions show, otherwise he'd be an incompetent captain. Therefore, he's constantly suppressing his own feelings.
Then he ran to Hueco Mundo and unleashed a barrage of attacks on Gin Ichimaru, but was repelled, leaving him exhausted. He then went to the World of the Living and was brutally beaten by Aizen, nearly dying. Why did this happen? The only difference between Tōshirō at that time and the one in the original work is that the current Tōshirō harbors a death wish.
Now, after his tearful conversation with Rangiku this morning, some of the pent-up emotions in his heart have eased. And after reading this book tonight and learning the truth about his sword being switched, Tōshirō is filled with remorse.
But at this moment, he was surrounded by a group of friendly people willing to help him. Soi Fon, who had overheard Tōshirō's secret, picked up the book from the ground, flipped to the last page Little Lion had read, and quickly scanned it.
"So that's how it is. Your Sword Soul was stolen like this. Now, what do you want to do?"
"Your Sword Soul was stolen?" Sōjun had read all the books about Zanpakuto. "I never thought Chunzhen would do something like this. He made a Hyōrinmaru to exchange for your Sword Soul? He's really... sigh... ridiculous."
"No! This is no joke!" Tōshirō wiped away his tears. "I truly sorry to Hyōrinmaru! This is the best punishment for me! Because I didn't even realize my Sword Soul was taken away! Only today did I realize how utterly awful I was!"
Tōshirō slapped himself hard as he spoke; he truly hated himself now, in every way.
Looking at Soi Fon, Tōshirō recalled herself a year ago, before she met Yoruichi and before her sword was changed. She drew her Suzumebachi, feeling the Sword Soul.
"I couldn't feel the Sword Soul either a year ago."
Tōshirō looked up in surprise, Soi Fon showed him the book she was reading: "Argument on the Relationship Between Souls and Zanpakuto".
"Souls and Zanpakuto, the Shikai and Kai of the Original Source Awakening —I know absolutely nothing about them. My Kai is called Suzumebachi Raikōben, as you, Lord Kuchiki, know."
"Yeah, I remember it was a giant missile, hahaha. But I heard you didn't use this solution during the Karakura Town battle."
Soi Fon nodded and drew another sword. "This sword was given to me by Shimizu-san. It's called Jusha, and it also has Sword Soul. I begged Jusha for a long time before she finally accepted me. Then I got the sword's release: Sniping Annihilation. Haha, my true nature is really violent."
"And this sword, my Suzumebachi, is not actually the awakening of my true nature. It is the Shikai that I forcibly released by conforming to the Stealth Force, but it is different from my true nature. For a long time, I did not accept my true nature. What I thought was that I needed the Stealth Force, so it appeared."
"Even so, she still accepted me. Her current interpretation is called 'Suzumebachi Tiger Stripe'," Soi Fon said, revealing a pair of beautiful hand nails. "I really love this interpretation. She's so beautiful, so beautiful, unlike me."
Tōshirō listened intently, Soi Fon chuckled, "I'm not showing off my sword, but rather saying that before this, my Release was a product of distortion. Because of Yoruichi 'Yoruichi departure, I thought she had betrayed me, which is why I released Suzumebachi Raikōben. But Shimizu-san helped me, and that's how I became who I am today."
"I don't know Shimizu-san, but he still helped me, possibly because of Yoruichi. But Tōshirō, I heard Yoruichi say that you are someone Shimizu-san highly regards and has great hopes for. He once refused to set foot in Soul Society again because of his wife's death, but for you, he returned to Soul Society and became the captain of the Tenth Division."
Tōshirō was stunned. "For me!?"
"Yes," Soi Fon explained, "Although Lady Isuzu was turned into Arrancar by Shimizu-san using a secret technique, she still died once, right? Because of some past relationships with bastards similar to those outside, Shimizu-san has a deep hatred for Soul Society hasn't set foot in it for over two hundred years."
"Is that so? I've let him down."
"That's not how it is," Sōjun pulled Tōshirō up, placed Hyōrinmaru in his hand, and smiled gently, "Knowing Sojun as I do, he never easily gives up on things he's committed to, including his ideals, and including you."
"You may be experiencing a low point in your life due to certain events, but Chun will give you new opportunities. He won't play pranks on you for no reason, because he's too busy. He'll simply ignore those he doesn't care about. So what you need to do now is not wallow in self-pity, but find your Sword Soul; it's definitely right beside you."
"I think so too. Shimizu-san wouldn't play a prank on you for no reason."
Sōjun patted Tōshirō on the shoulder and handed him the book. "If you don't know where to start, just read it. Don't be shy. Adjust your mindset, take it slow. You're still young, and you have unparalleled talent. As long as you don't go down the wrong path, you will definitely have a future far surpassing ours!"
Tōshirō felt that most of the gloom in his heart had been cleared away. Regret and pain are not the main themes of life; one must look forward!
The situation continues to escalate; the treasure has been moved to the Second Division, but this news has sparked curiosity throughout the entire Seireitei.
Then, Kaien Shiba was captured and added to the First Division. Many people admired Kaien's courage, but unfortunately, they still didn't receive any news from the Captain-Commander.
Kenpachi Zaraki of the 11th Division sat cross-legged in the dojo, a sword from the State of Mind Series resting on his lap. He was currently battling within the Inner World, striving to gain greater control over his power.
Kenpachi Zaraki has witnessed the power of Hollowfication Mask Fusion, but he himself cannot perform Hollowfication Mask Fusion. Even more strangely, he cannot simultaneously activate both Visored Mode and Mask Deactivation, indicating he is in trouble.
But who is he? He is Kenpachi Zaraki. He didn't choose to ask Jun; instead, after returning from Hueco Mundo, he plunged into the Inner World to find a battle between his two abilities.
He slowly opened his eyes, and a tiny figure jumped onto his back, "Ken-chan~ Welcome back!"
"I'm back, Yachiru," Zaraki said, getting up. Yachiru casually clung to his shoulder. "Was something wrong just now? It sounded really noisy outside."
"Huh? Sword-chan, weren't you in the Inner World before? You could sense the outside world?"
"Ah!" Zaraki held up his State of Mind Series sword, hung it on the wall, and looked at it with a complicated expression. "Her help to me is decreasing, sigh! I'm grateful to her, but she really can't work on me anymore. My heart can't find peace with her help."
"Oh~!" Yachiru exclaimed, "Ken-chan! I heard those guys in the Second Division found the treasure left behind by Jun-chan! Go check if there's anything you need!"
"Roar~ A secret treasure!?" Zaraki tilted his head, then suddenly grinned widely. "Hehehe, this is interesting. Let's go see how many secret treasures there are!"
"I hear there are so many! The Second Division spent a really long time moving them! A lot of people went!"
"Is that so?" Zaraki shouted as he arrived at the Tenth Division's training ground, "Assemble!!"
The 11th Division has been incredibly boring lately. First, there was a defection, and nobody from the 11th Division participated. Then there was an escape attempt, and nobody from the 11th Division participated again. Then someone from the Second Division came and asked the 11th Division to help capture someone, Kenpachi Zaraki appeared.
"Roll!"
So the 11th Division didn't participate either, leaving the 11th Division's Soul Reaper with nothing to do. And with that shout, over three hundred people instantly assembled.
"Everyone's here, right?"
Vice-Captain Huunjo Ippei, loudly reported, "Reporting, Captain! The 11th Division, all 317 men, are assembled!"
Zaraki grinned widely, "Very good! Now listen to my orders! Follow me to the Second Division! Retrieve the secret treasure!"
"Oh!!"
"Anyone who gets in my way?! Kill! No! Mercy!" Zaraki shouted, then used Shunpo to leap over the Ninth Division. "Follow me!!"
Over three hundred people followed Kenpachi Zaraki, charging straight towards the Second Division. The scene was spectacular, attracting other teams to follow and watch. It wasn't far; Kenpachi Zaraki led the charge, reaching the Second Division first.
"Captain Zaraki! What are you doing!?"
Kenpachi Zaraki stroke, his eyes gleaming with a blood-red light, like a man-eating Demons.
"Hand over the treasure!" No sooner had he finished speaking Zaraki Gengmu laughed, "Fine, I'll go get it myself!"
With that, he cleaved the office in two with a single stroke, giving the Second Division no chance to refuse and ignoring any accusations of rebellion. The rest of the 11th Division followed suit, and soon the Second Division was awash in blood.
The members of the 11th Division brought out the books and swords intact, Kenpachi Zaraki laughed heartily as he looked at them.
"Children, go home!"