The Otherworld's Power Makes Its Sea Star Debut!

Inside the Biochemical Research Institute on the Level 5.5 of Impel Down, there are actually their own cells, mainly used to detain some high-value test subjects.

However, researchers generally don't call them prisons, but rather Vault.

For example, Amber Lead Syndrome, the Blue Light Heart Kabane, and the two recently added "Man-Eating Demon", Muzan Kibutsuji and Nakime.

'Man-Eating Demon' is the scientific name researchers gave them, because the word 'ghost' sometimes also refers to 'Ghost'.

The environment here is actually better than the cells on other floors. The floors and walls are made of alloy steel plates reinforced with Seastone. It's just that the lighting is a bit greenish, making the atmosphere somewhat eerie, but it fits the 'Biohazard' theme perfectly.

Muzan Kibutsuji sat expressionlessly in one of the 'storerooms,' the Green Ring around his neck flashing brightly from time to time.

In another 'warehouse' across the corridor from him was a Blue Heart Kabane who had not undergone 'Wash-Heart'.

It always follows its primal instincts, stretching out its hands towards Muzan and letting out a bloodthirsty roar.

Muzan door to Muzan's 'storeroom' lived Nakime. She seemed quite docile, quietly kneeling on the ground, her long, straight black hair covering her pale face.

Suddenly.

A series of footsteps sounded as they approached.

This made the Blue Heart Kabane even more restless, and also brought a glimmer of hope to Muzan Kibutsuji's eyes.

"Yo~ The Man-Eating Demon boss from another world, I heard you want to get out and about?"

A moment later, a huge figure appeared outside the railing, its dark shadow blocking out the light. His tone was so nonchalant, so full of mockery.

In the past, Muzan, but now he could only slowly stand up, calmly look at the 'Titans' outside, and negotiate peacefully.

"Mr. Queen, it would be a waste for me to be only a test subject."

Yes, the person who appeared was Queen Plague, the former Beasts Pirates, who had only recently joined the Biochemical Research Institute.

A super fat man, over six meters tall, with a golden braid and a golden beard that made his white coat look round and bulky.

"Really? Then tell me, besides providing us with experimental subjects, what else can you do?"

Queen bent down curiously and asked.

Muzan, however, had already prepared a response, and confidently revealed a refined smile.

"First is my Blood Demon Art. I can use my own blood to turn people into demons, and then read their thoughts. I believe this is extremely effective for interrogating criminals!"

"Oh, indeed, Magellan and the others would be very interested. I can pass on the message for you later, but it's not of much use to our research institute."

Queen joked, instinctively wanting to light a cigar.

But as he instinctively put his hand into his pocket, he suddenly realized he didn't have any cigarettes on him.

This was the rule of the Biochemical Research Institute: if you wanted to smoke, you had to go to the designated smoking area. He could only smack his lips and swallow his saliva in disappointment.

"I can also change my appearance at will, sometimes as a man, sometimes as a woman, sometimes as an adult, and sometimes as a child. Wouldn't you like to know about this process of physical transformation?"

As he spoke, Muzan was about to transform his body into a woman, but the Green Ring around his neck suddenly emitted light, stopping him.

This greatly displeased Muzan.

"I can also distinguish between blood types, diseases, and genetic variations and differences. Believe me, as long as I have enough knowledge, I can definitely help you!"

"That's amazing?"

Queen was taken aback. They knew that Muzan could change his body shape, although they had never seen it with their own eyes. But they really didn't know how to distinguish between blood and genes.

Unfortunately, Imu didn't include this information in his report at the time, since it was useless for capturing Muzan.

"Wait a minute, I'll go talk to the dean. But if that's the case, there's a high chance you'll be allowed to go out and about. I'll take you dancing and rapping then!"

After saying that, Queen left with heavy footsteps like a dinosaur, which made Muzan Kibutsuji inside smile with delight.

He didn't really have any ambitions; he just wanted to survive.

Of course, it would be best to live comfortably. In his opinion, Impel Down was a good place. There was no need to worry about the threat of sunlight, and there were many people, making it lively and safe.

He's also very interested in Sea Star and other worlds, and he's sure to encounter many more interesting things in this Biochemical Research Institute in the future.

Just like that thing.

Muzan's gaze fell upon the Blue Heart Kabane opposite him.

○○○○○○

Sabaody Archipelago, the Laugh Tale on the first half of the Grand Line's seven major routes, is also an island of sin that has served as the center of the world's slave trade for centuries.

After extensive reforms and management by the World Government, the Marine Headquarters, and the Ministry of Police.

This place has truly become a paradise for amusement.

In addition, it is a Fish-Man Safety Zone, and many Fish-Man or mermaids can be seen walking around in the streets of various districts of the island.

They naturally became a unique feature of the island, attracting many tourists from all over the world.

Among them were those who harbored the intention of 'bringing' a few mermaids back as 'guests'.

But upon seeing the Surveillance Den Den Mushi with their large, rotating eyes, slowly wriggling, and then the tall, muscular Neptune Army patrols clad in armor and wielding steel forks, along with the dark green police officers guarding various locations, they could only suppress their emotions.

Then he enthusiastically Earth Flow over and chatted with the beautiful mermaids, displaying his most gentlemanly side.

They had already heard that if the mermaids followed voluntarily, there would be no problem as long as they didn't imprison or mistreat each other and just interacted normally.

Although the possibility is extremely low, it's worth a try. Who knows, with your charm, you might actually make a merman friend or win their heart?

District 60 on the island was originally Marine Base, but now it serves as the headquarters of the Public Security Division and the base for the Neptune Army.

Of course, there are also office areas for some government departments.

The biggest change is that the color of the main building and the surrounding walls has changed from sea blue to dark green.

The police officers, who were coming and going, were also wearing dark green, well-fitting uniforms. The black belts that clearly accentuated their waists, along with the cut of the uniforms that highlighted their physiques, gave them a masculine and handsome look.

And those high-ranking inspectors weren't wearing Coat of Justice, but rather black trench coats.

It is said that this now extremely popular uniform was personally designed by Minister Dragon.

Speaking of this bigwig, he should be working at the Ministry of Police on Enies Lobby, but he's always stayed here. Some people have asked Dragon why, since he could have just chosen a Public Security Division.

But Dragon's answer was that he was waiting for the first Public Security Division to return to his post!

On the playground inside the base.

Hundreds of police officers in green uniforms sat cross-legged on the ground, their eyes closed, under the blazing sun and in sweltering heat. The rise and fall of their chests seemed to follow a certain rhythm.

A young man with a golden eye on the right and a green eye on the left, his face wrapped in bandages, his medium-length black hair like seaweed, and a White Snake Coating around his neck walked slowly in the queue.

A moment later, he stopped as he passed one of the police officers and said in a cold voice.

"549527, your breathing rhythm is off, and you're not concentrating enough."

Hearing the reprimand, the officer opened his eyes and looked up unhappily. "Superintendent Iguro, is this Breathing Technique even effective? You're just sitting there?"

Yes, this young man is none other than Iguro Obanai former 'Serpent Hashira' of the Demon Slayer Corps. He is now dressed as a high-ranking police officer, with his black trench coat swaying gently behind him.

He originally wanted to join the Army like the 'Wind Hashira' Sanemi Shinazugawa, or become a Constitutional Police like the 'Flame Hashira' Kyojuro Rengoku, the 'Water Hashira' Giyu Tomioka, and the 'Mist Hashira' Muichiro Tokito, responsible for cracking down on high-risk criminals.

However, because the 'Love Hashira' Mitsuri Kanroji disliked fighting, she chose to become a Breathing Technique instructor at the Public Security Division, so she stayed as well.

Upon arriving here, Minister Dragon bestowed upon him the rank of police superintendent and the position of instructor of the Serpent Breathing.

Not just him.

In the distance stands the 'Stone Hashira', Gyomei Himejima, who is now also an instructor of the Stone Breathing Technique.

There's also Kyojuro Rengoku's father, the former Flame Hashira Shinjuro Rengoku, the former Thunder Hashira Jigoro Kuwajima uses a cane due to old age, and the former Water Hashira Sakonji Urokodaki.

They serve as instructors for the Flame Breathing Technique, Thunder Breathing, and Water Breathing Technique, respectively. Their job is essentially that of Instructor, only the number of students they train has increased several dozen times.

In fact, given their abilities, which are comparable to those of officers at the military headquarters, they should at least be inspectors.

But they are, after all, people from Otherworld, and their endurance, which is weaker than that of Sea Star Person of the same level, means that this kind of strength can only be considered an 'outburst'.

In the Military Police Bureau, the lowest rank is Senior Superintendent.

"As I've already mentioned, this Breathing Technique can at least double your physical strength, activate your Divine Power, and even give you the ability to stop bleeding yourself. If you think these are useless, you can leave now."

Iguro Obanai stared coldly into the other person's eyes as she spoke.

"Koko, you guys are just talking, and sitting like this is really annoying. Don't you have any exercise methods that involve movement?"

The officer who raised the objection was a sheriff, judging from his shoulder insignia, which is equivalent to a non-commissioned officer in the military. He was indeed a sergeant in the Marine Headquarters.

In his view, cultivation should involve physical training or practicing Swordsmanship and boxing, not just sitting with one's eyes closed.

The man's words clearly resonated with the other officers around him; although they didn't say much, they all nodded in agreement.

"There was indeed a physical training component, but your physical fitness has already met the requirements, and many of you have even far exceeded them. So you only need to learn the Breathing Technique rhythm. Once you've mastered the Breathing Technique, you can start practicing the accompanying Swordsmanship!"

Sakonji Urokodaki was not far away, heard the commotion and raised his voice to call out to those around him.

A police superintendent of the same rank as these instructors stood up and said loudly, "We need to see real results. You instructors should all know this Breathing Technique, so please demonstrate it."

"First Form: Unknowing Fire!"

Just as he finished speaking, he felt a raging fire rushing towards his side. He instinctively tried to dodge, but the icy touch on his neck froze him in place.

After all, not every sergeant gets to receive special instruction from Marine Vice Admiral and be exposed to the Six Powers ahead of time.

"Wow!"

The superintendent may not have seen it clearly, but everyone else around saw it perfectly clearly: the Instructor Rengoku's blade was indeed flaming.

As for the speed displayed, no one paid much attention to it. Although they couldn't do it, they were all from the Marine Headquarters and had seen it before.

"This is the specific effect of wielding sword techniques after Divine Power is activated; it will make you faster, stronger, and more responsive!"

Shinjuro Rengoku sheathed his Nichirin Blade and said in a deep voice.

In his view, given the physical condition of these Sea Star Person, if they mastered the Breathing Technique and the accompanying Swordsmanship, they would probably be able to fight against him very quickly.

Of course, he's still much weaker than Kyojuro Rengoku's current Pillars.

"You're really not a power user?"

The sheriff, who had just had a blade pressed against his neck, looked at him with suspicion. A superpower like wielding a blade and releasing flames—that's clearly the ability of a superhuman!

But it seemed that Shinjuro Rengoku was prepared, as he took out a handcuff from his trench coat pocket and held it above his head.

"These are Seastone Handcuffs, I'm sure you're all familiar with them. If anyone has any doubts, then please have someone with the ability come up and feel them!"

Soon, a police officer who claimed to be Zoan officer ran over. After personally experiencing the weakness brought on by the Seastone, he confirmed the authenticity of the handcuffs.

When he returned to his position, he saw Shinjuro Rengoku holding the handcuffs tightly in his left hand and the Nichirin Blade in his right, performing the 'First Form' to 'Tenth Form' of the Flame Breathing Technique in turn.

For a moment, it was as if a fiery Tatsumaki had appeared and was raging around the field, leaving all the police officers sitting cross-legged on the playground dumbfounded.

Meanwhile, Dragon was also watching this scene through his office window.

He was certain that this was the first time that Otherworld power had appeared in the Sea Star World, and he imagined that more and more strange abilities would emerge in the future.

It seems they encountered a magical and extraordinary era.

After completing a set of sword moves, Shinjuro Rengoku proved that he was not Devil Fruit User.

"This is the Flame Breathing. Besides that, there are also the Thunder Breathing, the Water Breathing, the Stone Breathing, and many other Breathing Technique, each with its own unique characteristics. Our task as instructors is to teach you the Breathing Technique that is most suitable for you!"

Then, to everyone's astonishment, he used the knife in his hand to cut his arm, and blood immediately flowed out, dripping crimson blood onto the ground.

"Look carefully!"

Shinjuro Rengoku squinted at the bloody gash on his arm.

The next moment.

Damaged blood vessels, which are difficult to see with the naked eye, are ligated together at an extremely rapid pace.

A few seconds later, he took the Aquarius handed to him by Sakonji Urokodaki, cleaned most of the blood, and then raised his arm, which had stopped bleeding, high.

"Has the bleeding really stopped?"

"Really?"

The officers nearby stared wide-eyed, and after confirming that the wound had stopped bleeding, they quickly relayed the information to those around them. Within minutes, everyone on the playground knew.

"I heard you were all in the navy, you were soldiers. So let me ask you, is this ability to quickly stop bleeding useful on the battlefield?"

Shinjuro Rengoku loudly questioned all the police officers.

For a moment, there was complete silence.

From a distance, Dragon stared at him, muttering to himself, "It really is the effect of Life Return."