I will attack as a player!

Chapter 22 Upgrade and Exit the Dungeon

With the dust settled, Chu Wuji returned to the Butterfly House, casually found someone to exchange the two heads under the other's terrified gaze, and then told the other to inform Butterfly Shinobu not to call for reinforcements before finding an empty room to sit down.

He was about to exit the instance.

There's no other reason than that, given Chu Wuji's current preparations, all the benefits he could gather in the Demon Slayer world have already fallen into his hands.

Muzan's flesh and blood, the bulb of the Blue Spider Lily, Shinobu Kocho's family medical skills, and the medicine she developed that could free her from Muzan's control.

Everything was ready; all that was missing was a sufficiently safe environment for Chu Wuji to take his first step into demonic transformation.

Is there anything more perfect than reality?

Putting everything else aside, the only thing that can be supplied by the real world is the large amount of "ingredients" that a demon needs to eat after it has turned into a demon.

Chu Wuji asked himself honestly, and he would never have the heart to eat human flesh unless it was absolutely necessary, let alone be cursed if he ate people in the world of Demon Slayer, which has a heaven and hell setting.

The most he could accept was drinking fresh blood.

Therefore, Chu Wuji's ideal ingredient was to clone the "rare blood of Shimi" obtained from the previous lottery, so that both the quality and quantity could be maximized.

Secondly, the cultivation of the Blue Spider Lily requires precise instrument control in reality, which is something that cannot be done in the Taisho era of Demon Slayer.

Now, Chu Wuji's only purpose in staying in the Demon Slayer instance is to take advantage of the setting that "no matter how much time passes inside the instance, only ten minutes will pass outside" to advance his martial arts proficiency and complete the [Minor Success] required in the [Limit Breaking Mission].

With this in mind, Chu Wuji decided to dedicate all his remaining time, except for eating and sleeping, to cultivation!

Thanks to the Kasugai Crow, the news traveled quite quickly, and Shinobu Kocho returned breathless shortly afterward.

Seeing Chu Wuji sitting safely in the room, he breathed a sigh of relief and hurriedly went forward to ask, "Wuji-jun, are you alright?"

Because of Chu Wuji's medical expertise and their joint research and development of medicines, Shinobu Kocho and Chu Wuji's relationship has grown much closer, to the point where they can call each other by name.

However, Chu Wuji always found it hard to accept that Shinobu Kocho called him Wuji-kun, as Wuji was a title traditionally reserved for elders.

It feels like I've suddenly become a generation younger for no reason.

However, when in Rome, do as the Romans do, and Chu Wuji didn't dwell on it too much.

"It's alright. Shinobu, have you forgotten that Giyuu said my strength is no less than Hashira's?"

"No, it's just that Wuji-kun's medical skills are a treasure, and we can't afford to lose them..." Of course, Shinobu Kocho remembered, otherwise she wouldn't have escorted the medicine away but stayed behind to protect Chu Wuji.

"The reason is quite straightforward." Chu Wuji thought for a moment and decided to say it first: "If nothing unexpected happens, I need to go back to my hometown in a month."

Shinobu looked up, her surprise followed by a hint of hesitation: "Will Mukichi-kun come back?"

"It should happen, but I don't know how long it will take."

Returning to the instance was a given; Chu Wuji also wanted to test whether he could acquire all the Blood Demon Techniques of the ghosts after his transformation into a ghost.

Normally, a demon only has one type of Blood Demon Art, but Muzan has many. Perhaps demons at the Demon King level will undergo a qualitative change.

As for how to obtain it, Chu Wuji guessed that perhaps he could obtain it by devouring other demons, just like Muzan tried to devour Nezuko to analyze the method of resisting sunlight.

It's not very feasible, but we should still give it a try.

Chu Wuji has already obtained the access key, so he can directly enter the Demon Slayer instance at any time during the collaboration period, so there's no need to worry about that.

The only uncertainty was whether the time of re-entry would be the same as the time of departure, so Chu Wuji did not provide a precise time.

"Is that so?"

Shinobu Kocho is somewhat conflicted.

The main reason is Chu Wuji's terrifying medical skills. He was able to create a potion to break Muzan's control in such a short time after seeing the demon. Secondly, there is Chu Wuji's strength. Although we have never fought him, judging from the fact that two Lower Rank demons were captured alive, he is no less powerful than a typical Pillar.

Joining the Demon Slayer Corps would be a huge asset.

However, Shinobu Kocho also had her own conscience. Chu Wuji himself did not have any hatred for demons. He was just a passing traveler. Shinobu had no right or position to ask Chu Wuji to stay and risk his life to kill demons.

She still can't bring herself to do something like moral blackmail.

After hesitating for a long time, Shinobu Kocho ultimately did not speak, but simply nodded: "Then I wish you a safe journey, Lord Wuji. I will inform the lord and the others to make sure we see you off."

"Aren't these the ones who haven't left yet?" Chu Wuji didn't want to see the other pillars for the time being, mainly because he was afraid that the few with keen senses would notice the difference between himself and his current self, and discover that he had become a demon: "As for the farewell party, please allow me to decline. I'm not a person who likes crowds."

"Haha, ごめんね~"

Actually, Shinobu Kocho made a mistake in one point: Chu Wuji, as a player, does not suffer any penalty for dying in the dungeon.

If it weren't for the need to deliver the spoils of Muzan's flesh and blood, Chu Wuji would have been willing to sacrifice his life just to kick an NPC he didn't like on the roadside.

This is how we players are.

----------

After the Butterfly Mansion was exposed, it naturally needed to be relocated. As a strategic figure on par with the Pillars, Chu Wuji did not need to participate in moving supplies and wounded soldiers, and arrived at the Butterfly Mansion's new address ahead of time.

From the moment he opened his eyes in the morning until he went to bed at midnight, apart from answering some minor questions for Shinobu Kocho, Chu Wuji never stopped practicing martial arts.

Time flies, and a month has passed in the blink of an eye. During this time, several things happened that were insignificant to Chu Wuji but greatly changed the plot. The script of Tanjiro's family seemed to have been reversed. Tanjiro, who had become a demon, suddenly fell into a deep sleep these days, and Shinobu Kocho tried to find a way to wake him up. Nezuko and her younger brother Takeo Kamado became disciples of Sakonji Urokodaki and studied Water Breathing for a long time.

I wonder if the two of them, who haven't learned Sun Breathing, will unleash their full power when they encounter a strong enemy, like Tanjiro in the original manga did, by recalling their ancestors' memories.

Meanwhile, Chu Wuji's cultivation was also coming to an end.

As he finished his final move, Chu Wuji's understanding of the two martial arts techniques instantly reached a new level.

Your skills, Purple Lightning Reverse Fist and Thunder Chasing Step, have reached [Minor Success]!

[The mission to break limits has been completed!]

[Upgrade?]

"upgrade!"

Your level has been increased to level 11.

You have gained one Free Point.

The next instant, an invisible wave enveloped Chu Wuji's entire body, then dissipated in a flash.

The player's leveling up is so simple and unpretentious, without any uncontrollable aura or sudden, intense pain.

But the improvement in strength is real!

He clenched his fist slightly, and the air crackled.

"What a terrifying improvement! Is this what breaking through limits is like?" Chu Wuji was somewhat surprised. Based on his rough feeling of clenching his fist just now, his grip strength alone had definitely increased by more than five times!