Demon Slayer: You call paying to get stronger "lightning"?

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Demon Slayer: You call paying to get stronger "lightning"?

Author: Liu Qingchen

Synopsis: [System pays for life][Exhilarating combat][Thunderous][Growth potential]

When Yasui Ryosuke is transported to the world of Demon Slayer, he is devastated.

Good news: He is familiar with the original novel and knows the plot.

Bad news: The original owner was a sickly person who was not long for life, and the only cheat was the double-dealing system that required spending a lot of time and effort to become stronger!

"You mean killing demons grants you lifespan, which can then be used to enhance your breathing technique and sword skills?"

Yes~

How much longer can I live?

[Congenital liver failure, at most one year, haha~]

"Fuck your sister!"

Yasui Ryojie was angry.

What kind of good system would make a cancer-stricken host risk their life?

Knowing the original plot, Ryosuke would never willingly seek his own death by joining the scoundrel Muzan.

If that's the case, then kill!

Slaughter them until the heavens and earth are darkened, and annihilate all the evil spirits in the world!

……

The evil spirit: "Don't ghosts have the right to live? Do ghosts deserve to die?!"

Tanjiro pondered deeply, while Zenitsu remained silent.

Ryosuke drew his sword: "Nonsense! Do you think I'm the one who dies if you don't?! Go talk to my Nichirin Blade!"

……

Nightmare: "Fall into a beautiful dream."

Ryosuke: "Kill! Kill! Kill! All evil spirits deserve to die! Cut them into eight pieces! Chop them into mincemeat!"

Nightmare carried the train and fled overnight.

……

Akaza: "Ryosuke! Become a demon, Ryosuke!"

Ryosuke Yasui's eyes widened like saucers.

Dude, are you drunk?!

……

Black Death Eyes: "Throughout history, you are the first person to have mastered the Breath of Thunder to its ultimate level."

Ryosuke: "What are you babbling about? System, give me some points! Damn it!"

……

Muzan: "Is killing me all you think about?!"

Ryosuke: "Hehe~ Demon King~ Huge experience pack~ Hehe~"

Chapter 1 Coach! I want to slay the demon!

"Your uncle's!"

"What are you doing for me?"

"Is this still in China?"

Before Yasui Ryosuke could react, a large number of memories were forcibly inserted into his brain, stirring it wildly.

During the Meiji era, it was said that evil spirits ate people at night.

In the common people, there are also demon hunters who form demon slayer squads to kill evil spirits and protect humanity.

This is so special... ahem, the world of Demon Slayer?!

Ryosuke Yasui cried, made noise, and Yuu...

No, it's heartbreaking.

Dude, I haven't even used up all those tens of thousands of Primogems I've saved up for this!

No one is protecting Konoha Village anymore!

Even Liu Tao didn't have time to wear it, even though it was a family heirloom!

I haven't deleted the several terabytes of study materials on my computer.

The browser history on my phone, as well as those miscellaneous fruit apps and games like Agent and Beauty World, haven't been formatted yet.

What if Uncle Hat breaks my phone...?

"My lifelong wisdom!"

Ryosuke Yasui looked up to the sky and roared.

He's an upright and honest young man, a beacon of the nation who does good deeds every day. How did he end up being conscripted and working here after just one night's sleep?!

However, it turns out that staying up late really can lead to sudden death.

Is it really that hard to achieve the goals of time travel these days?!

Good news: Ryosuke Yasui has read the original work very carefully.

Bad news: He's dying.

A sharp pain tore through Yasui Ryosuke's body.

He suffered uncontrollable convulsions and vomited blood.

The original owner of this body was a sickly man who was about to die. His parents had been eaten by evil spirits, and he was saved by a one-legged old man with a fierce-looking face and a cane.

"You're already in such a terrible state... Brother Tong, stop hiding it!"

Ryosuke Yasui cried out in anguish.

A crackling sound filled my mind.

The Evil Demon Extermination System is now activated.

[The host can gain lifespan by slaying evil spirits to cure intractable diseases, and can also use lifespan to learn breathing techniques and sword skills.]

Ryosuke Yasui's lips twitched slightly: "Chief."

"How long can I live?"

[Congenital liver failure, at most one year, haha~]

"Fuck your sister!"

Yasui Ryojie was angry.

I'm damn it.

Using this sickly body to slay evil spirits?

Putting aside the fact that he doesn't have a Nichirin Blade, his lifespan points alone are fucking painful!

What kind of system would make its host risk their life for it?

Ryosuke Yasui roared, "How the hell am I supposed to slay demons with this body? By appealing to their kindness and making them slit their own throats?!"

[Don't panic, host. At least it's a liver problem, not a lung problem. You can still alleviate it by strengthening your body and using breathing techniques, and slow down your death.]

Ryosuke Yasui was practically grinding his teeth to dust: "You son of a bitch! Which company produced your system? I'm going to file a complaint against you!"

The current is still flowing, but the system is essentially frozen.

It took Yasui Ryosuke a full hour to accept the truth.

What else can we do but practice and learn?

You really will die if you don't kill the demons!!!

A deliberate cough sounded at the door, interrupting Yasui Ryosuke's accusations against the unscrupulous system.

Ryosuke Yasui looked up.

An elderly man stood at the door; he was short in stature but exuded a calm and composed aura.

He had white hair and beard, and a serious and fierce face.

Most notably, he has a scar under his left eye similar to that of Hugh Jackman, and his missing right leg is fitted with a prosthetic, with a wooden crutch supporting his body.

Kuwashima Jigoro!

The former Sound Hashira and trainer of the Demon Slayer Corps!

Zenitsu Agatsuma and Kaidake Inatama's master.

Kuwashima Jigoro said with concern, but more so with sternness: "You're a tough guy."

"Thank you, senior, for saving your life."

Ryosuke stood up and bowed, but his body was weak and his movements were somewhat awkward.

Jigoro approached a few steps with his cane, his gaze sweeping over Ryosuke like a knife.

"Your body is like a rotten piece of wood that has been eaten away by insects. It would fall over if the wind blew it down. You are even weaker than an old man like me. You have congenital liver depletion and are deficient in both qi and blood. It is a miracle that you have lived until now."

Ryosuke Yasui: "..."

It’s so heartbreaking, old man!

There's no need to emphasize that now!

"Was it something you were born with?" Ciwulang asked.

Jigoro frowned. "The doctors in the Demon Slayer Corps can help you recover and buy you some more time."