Chapter 4: Attack Incoming, Nami on the Pirate Ship

"Surprisingly, there's still a gym and a Sword Enlightenment Room?"

"Interesting, now I can quickly enhance my strength."

"Perhaps through training in the Sword Enlightenment Room, I'll be able to obtain the 'Sky-Cutting Realm Swordsman Challenge Permission,' there by raising my swordsmanship level to the Sky-Cutting Realm."

As for swordsmanship, the system has divided it into five levels.

[Initiate Level]

[Iron-Cutting Realm (Novice)]

[Sky-Cutting Realm (Intermidiate)]

[Mountain-Cutting Realm (Advanced)]

[Sea-Cutting Realm (Master)]

Currently, Rosen belongs to the Iron-Cutting Realm, hence he can easily cut Joseph's long sword.

Once he reaches the Sky-Cutting Realm in swordsmanship, he'll be able to freely use flying slashes.

Listening to the prompts in his mind, Rosen felt quite satisfied.

Although in terms of nutritional potions, the system only provided 10 bottles of C-rank potions.

But even with just these ten small bottles of potions, compared to ordinary training, the rate of personal health improvement is incomparable.

Rosen even felt that after using these 10 bottles of C-rank potions, his health would approach B-rank.

"It's a pity that 'C-rank potions' can only be used when my health level is at C-rank."

"Once past C-rank, this reward is considered null."

"Fortunately, in the future, I should be able to obtain B-rank or even higher-grade potions from the system."

With this in mind, Rosen couldn't help but focus on the three lottery chances he obtained.

"System, conduct three lotteries!"

[Lottery in progress... Congratulations to the host for obtaining the swordsmanship style 'Demon Slayer Breathing Techniques Full Set,' 'Zanpakuto · Gonryumaru,' and 'D-rank Nutritional Potions x10'.]

"Another Zanpakuto?!"

Rosen felt delighted, immediately sinking his consciousness into the mental space, carefully examining the Zanpakuto previously held by the vice-captain of the 1st Division, which controlled the power of lightning.

Soon, Rosen furrowed his brow.

"Because I already have Zangetsu, does that mean I can't unleash 'Gonryumaru' using my own power?"

"System, what kind of rule is this?!"

[The host already possesses the Zanpakuto 'Zangetsu.' If you wish to use the power of a new Zanpakuto, you can have your companion bind the Zanpakuto 'Gonryumaru.' When your companion meets the release conditions for 'Gonryumaru,' you can also use 'Gonryumaru' for sword release.]

"No wonder it's the 'All Swordsman System', even the weapons obtained in the lottery encourage me to recruit companions, right?"

"It seems that I'll have to recruit some people to join my team in the future."

Shaking his head, Rosen stood up from his position.

Just as he was about to use the 'Demon Slayer Breathing Techniques' and complete his comprehension, a cannon blast suddenly broke into Rosen's perception.

Following that, the ship shook.

"Hmm? Cannon fire?"

Rosen furrowed his brow slightly, stepping out of his room and running towards the direction of the deck.

With his speed, he arrived at the bow of his ship in less than a minute.

...

"Kid over there, stop your ship, your treasures belongs to me now, hahaha."

On the deck of a pirate ship on the sea, a man wearing a pirate captain's hat shouted at Rosen.

"It's the first time I've encountered pirates actually robbing me."

"Well, let's use you all to practice the sword techniques I just learned."

Muttering to himself, Rosen forcefully stepped on the ground, instantly crossing a distance of over ten meters and landing on the deck of the pirate ship.

"Kid, are you seeking death?!"

The unnamed pirate captain's eyes narrowed, about to draw his gun and shoot at Rosen.

However, Rosen's movements were much faster than his.

"Thunder Breathing · First Form · Thunderbolt Flash!"

Boom!

With a roar of thunder, Rosen's figure turned into a golden lightning bolt, quickly passing through the pirate captain's body.

The pirate captain didn't even have time to figure out what had happened; his body, maintaining its original stance, was cut into two.

"Lightning?"

Rosen looked strangely at the residual lightning on the long sword in his hand.

"In the world of the Demon Slayer, when swordsmen use breathing techniques, they shouldn't actually produce energy such as lightning, fire, or water, right?"

"The flames and thunder in the original work are just some forms of representation."

"Could it be that the 'Demon Slayer Breathing Techniques Full Set' given by the system is an improved version?"

Thinking so, Rosen changed the rhythm of his breath, switching from the Thunder Breathing to the Sun Breathing.

Soon, flames ignited on the blade of Zangetsu.

"Exactly, it's a good power."

"In this way, my sword also has elemental power."

Watching the flames on the blade, Rosen nodded in satisfaction.

At this moment, seeing the flames igniting on Rosen's sword, the surrounding pirates finally reacted.

"The captain... is dead?!"

"Is this a joke? Am I dreaming?"

"Quick, attack, kill this guy and avenge the captain!"

"Kill him!"

The voices around made Rosen turn his head to look around.

"Since you want to die, I'll grant your wish."

"Sun Breathing · First Form · Dance!"

As his words fell, Rosen's long sword quickly traced out a circular trajectory.

Along with this circular trajectory, the flames on the blade spread out in a circle around him.

Soon, all the pirates who rushed forward were encompassed within the sword momentum and flames.

In just a few seconds, all the pirates lost their lives in the sword momentum and flames.

"I overestimated you."

"Ordinary pirates can't even provide me with sword practice."

"Don't you think so, cute little girl?"

Rosen sheathed his sword and smiled at the orange-haired girl standing in the corner, trembling as she looked at him.

"No... please don't kill me, I'm not with them."

"I was just a person captured by them."

Seeing Rosen looking at her, the orange-haired girl hastily spoke.

"Is that so? What's your name?"

"I'm Nami!"