The Duel of Blades

"Renji!"

Just as Shiba was about to stop Renji from violating the rules of Soul Society, he heard Kenpachi's voice trying to stop him.

"Let him go. Only a man who risks his life deserves a fight. Ikkaku, this red-haired guy is starting to look like a man," Kenpachi said.

"This is the first time I've felt that Renji is somewhat beautiful," Yumichika said.

Renji Abarai was once the sixth seat of the Squad 11. Kenpachi, Ikkaku, and Yumichika were all familiar with Renji, and Renji respected Ikkaku and Yumichika. However, Kenpachi did not think much of Renji, as he did not like this indecisive guy who was swayed by emotions.

So when Renji was appointed as the Vice-Captain of the 6th Division, Kenpachi Zaraki kicked Renji to the 6th Division without any hesitation.

Seeing Renji staggering around, Tsuna decided to help Renji recover first. Since Renji's injuries had already been treated, a little effort wouldn't be too much.

"Excuse me, could you please find me an empty room?"

Tsuna grabbed a member of the Fourth Division at random. The man initially wanted to refuse, since the Fourth Division was full of wounded soldiers, where would they find an empty room for a Ryoka like Renji? However, after seeing Renji 'Vice-Captain name tag, the man still led Tsuna and Renji to a small, quiet room.

"Sawada Tsunayoshi, right? Aren't we going to find Ichigo Kurosaki?" Renji already knew Tsuna's name from Yachiru while he was lying dead.

"You can't expect me to carry you there, can you? Or are you planning to crawl there for several days?" Tsuna asked.

Renji blushed slightly. His relationship with Tsuna was merely that of strangers, and his own injuries had not yet healed, preventing him from walking quickly.

"Let's help you recover first. Brighten the sky, it's sunny."

The Sun Gauntlets appeared in Tsuna's hands. The Sun Attribute gave these gauntlets not only combat abilities but also the ability to accelerate the target's physical Activation and healing.

The blinding sunlight emanating from the boxing gloves filled every corner of the room, making it impossible for Renji to open his eyes. He felt itchy all over. After a while, the sunlight disappeared, and when Renji opened his eyes, he found that his body was much more agile.

"What... what is this?"

Renji realized he felt no pain at all. He tore off the bandages, and all his injuries had healed. He also noticed that his hair had grown longer, but since he already had long ponytail hair, it didn't bother him.

"Sawada-sensei, thank you very much." Renji bowed very respectfully to Tsuna. With Rukia's sentence coming to an end, the recovery from her injuries was extremely important to him.

"It's nothing. Focus on mastering your Bankai these next few days. Your use of Bankai was too immature when you fought Ichigo," Tsuna said.

"You're right." Renji knew he had only just learned Bankai and his Bankai use was still superficial.

Renji was still incredulous as he manipulated his own body. How could he have recovered so easily from such severe injuries, even faster than the Return to the Dao?

"Let's go, take Chad with us, we're leaving." Tsuna was about to go find Chad when Renji from the doorway.

"Chad is your companion? Forgive my bluntness, but with your power, why do you still need the Fourth Division's help to heal you?" Renji asked curiously.

"The Daoist path has a greater advantage in treating injuries; my power merely accelerates the recovery process."

The Activation of the Sun Attribute Flame is to accelerate cell Activation to heal injuries. If the healer helps treat the injuries, using the Sun Attribute Flame to speed up the recovery process is even more beneficial to the injured person.

"I see. Sawada Tsunayoshi, could you demonstrate your power to me?"

The door in front of Tsuna opened automatically, and standing outside was Unohana Retsu, the Fourth Division Captain, who was smiling with her eyes narrowed. When Tsuna saw that gentle smile, he felt a chill for no reason.

In Unohana Retsu's private lounge, she brought Tsuna and Renji to this room. Before they could even sit down, Kotetsu Isane came over to report.

"Captain, the three wounded soldiers who were just brought in have received medical treatment and are now just waiting for them to recover on their own."

"Thank you, Captain Unohana and Vice-Captain Kotetsu." Tsuna immediately thought of the people he had sent. Chad was one of his own, so he had to thank them no matter what.

"It's just a doctor's duty, no need to say more. Isane, could you please go outside with Vice-Captain Abarai for a moment? I have something I want to say to this Sawada Tsunayoshi."

At Unohana Retsu's request, only she and Tsuna remained in the room. Tsuna felt somewhat awkward, as he didn't know Unohana Retsu at all and didn't understand why she wanted him to stay.

"Captain Unohana, is there anything I can help you with?" Tsuna felt uncomfortable being stared at by Unohana Retsu, and unconsciously even started using honorifics.

"I've heard that Sawada-sensei has a unique school of swordsmanship. I wonder if I'll have the honor of witnessing it today?"

Unohana Retsu opened her eyes a crack, Tsuna suddenly sensed a strong killing intent. A fierce fighting spirit rose in Unohana Retsu's heart.

If Tsuna wasn't mistaken, it was Kenpachi's injuries that caused Unohana Retsu's mindset to change, leading her to use her swordsmanship to defeat the captain who bore Kenpachi's name. This sparked Unohana Retsu's interest in Tsuna.

"Isn't Captain Unohana's job to provide medical care? There's no need for her to fight, is there?"

Tsuna was somewhat reluctant to fight Unohana Retsu. Given Unohana Retsu's fighting strength, if the two started fighting, it would be difficult for Tsuna to stop as easily as he had with the other captains.

"As the Fourth Division Captain, it is also my duty to capture the Ryoka who murdered Captain Aizen and injured many other captains." Unohana Retsu said these frightening words with a smile.

Tsuna quickly tried to prove his innocence, saying, "Captain Unohana, please get this straight, Aizen's death has absolutely nothing to do with us. You must have noticed something amiss with that fake corpse, right?"

Tsuna's words reminded Unohana Retsu of the strangeness surrounding Aizen's corpse, but she quickly put it aside. Whether Aizen was dead or not was actually not of much concern to her. Instead, it was this newly appeared swordsman in front of her who stirred her heartstrings, which had been calm for a long time.

Seeing that Unohana Retsu remained silent for a long time, Tsuna began to consider making a quick getaway. He moved his feet little by little toward the door, intending to leave the Fourth Division before Unohana Retsu could react. As for Chad, Tsuna believed that Unohana Retsu wasn't worth arguing with a sick person, so he could stay in the Fourth Division for the time being.

Suddenly, a gust of cold wind brushed past Tsuna's brow. Tsuna instinctively dodged backward, and then the spot where he had been hiding suddenly collapsed, revealing an underground passage that could hold several people. This Tsuna Tsuna no foothold and he fell straight down.

Wait, does the Fourth Division have an underground space? I've never seen it in the story. That was the only thought on Tsuna's mind as he fell.

Unohana Retsu slowly walked to the entrance of the underground passage. She had deliberately lured Tsuna to the passage with her sword. If Tsuna could react in time, it would prove that Tsuna was worth her time. If he couldn't react, it would just mean that the Fourth Division would have another injured member.

Unohana Retsu glanced at the passage and jumped in herself. She used this underground space of the Fourth Division to vent her anger. The killing intent she had accumulated as the First Kenpachi could not be let go so easily. So after entering the Fourth Division, Unohana Retsu created this space to gradually consume her killing intent, eventually becoming a gentle older sister on the surface.

Tsuna looked up and saw the last glimmer of light disappear. As Unohana Retsu entered the scene, the passage closed. After the passage closed, torches lit up automatically one after another, illuminating the entire underground space.

This is an empty Dojo, with nothing but torches decorating the walls. The space isn't particularly large either, only covering the size of the entire Fourth Division.

Unohana Retsu gracefully descended, the large braid on her chest now scattered, and she transformed from a gentle older sister into a sinister sword demon with long, straight black hair.

Unohana Retsu Tsuna no intention of wasting words with Tsuna and slashed at him from above.

Shigure Kintoki appeared in Tsuna's hand, slashing upwards and creating a ripple that blocked Unohana Retsu's attack. It was the second form of the defensive style: Reverse Rain.

Tsuna, Tsuna increased the distance between himself and Unohana Retsu, "Captain Unohana, can't we just not fight?"

Tsuna didn't want to fight this battle maniac. Unohana Retsu wasn't the Kenpachi Zaraki had sealed his true power, and Tsuna wouldn't be able to defeat Unohana Retsu in a short time.

"Having already taken up the sword, what need is there for further words? Let's fight!" Unohana Retsu's face, hidden beneath her long hair, looked terrifying.

Well, the so-called Kenpachi is just a lineage of belligerence. The current Unohana Retsu is no longer the captain of the Fourth Division she used to be. The title of the First Kenpachi would be more fitting for her current state.

Unohana Retsu's sword strike was incredibly fast, appearing in front of Tsuna in the blink of an eye. Tsuna almost didn't have time to react, but just as Unohana Retsu 'Tsuna sword was about to strike Tsuna, water splashed around him again.

The seventh type of the Guardian Style: Flourishing Rain.

With a loud bang, Tsuna was actually knocked to the ground by Unohana Retsu's sword. He rolled twice on the ground before regaining his balance. Unohana Retsu's sword directly broke through the defensive water wall formed by Flourishing Rain and struck Shigure Kintoki.

Tsuna's expression turned serious. Unohana Retsu was far, far Kenpachi Zaraki was now. Using only Asauchi, which was just a pure slash, the Rain attribute Shikai couldn't withstand a single strike from Unohana Retsu.

"Is this what they call the Shigure Soen Ryu?"

The Zanpakuto's blade reflected Unohana Retsu's somewhat disappointed expression. She had thought she had found a delicious prey, but it turned out that Shigure Soen Ryu was no different from the second-rate swordsmanship styles she had defeated; none of them could withstand a single blow.

Unohana Retsu's interest cooled slightly. If she had known that Tsuna's strength was nothing special, she wouldn't have risked revealing her true self to outsiders and fighting Tsuna.

Unohana Retsu saw Tsuna Unohana's undisguised expression. This feeling of being looked down upon was unpleasant. Tsuna's thoughts quietly changed. He didn't want to care about what would happen to the Seireitei for the time being. He just wanted to have a serious fight with the First Kenpachi!

"I apologize for not being able to get Captain Unohana to use her full strength." Tsuna said, standing up and pointing Unohana Retsu. "Now, please enjoy the thrill of battle! Bankai!"