Shirou's clones number 30 million

"Sastin, Lala and I are planning to go to the zoo in the suburbs today. Do you want to come along?"

"Shirou, why did you invite Sastin?" Lala asked in surprise.

"Because even if Sasdin isn't invited, he'll still sneak over."

"That's true. So... would you like to come along, Sasdin?"

Sasdin shook his head slightly and sighed:

"Do you two think I'm that tactless? Go ahead and have fun. I'll have guards protecting you from the shadows."

“Since Sasdin says so, let’s pretend we didn’t see them,” Lala said with a smile.

Uh……

Was I really so negligent in my duty as a bodyguard?

Sasdin wanted to prove himself, but when he thought of Shirou's strange ability to clearly perceive everything around him even with his eyes closed, he couldn't help but sigh.

In every aspect, I am no match for the person I am protecting. How derelict I have been!

It seems I must train desperately.

……

Nighttime, within a space shrouded in white mist.

"Ta-da... Here's what you wanted."

"Don't imitate Lala's tone, okay?"

Investigator Shirou muttered a speechless complaint, then took the medicine box containing the antidote and formula, falling silent in the process.

"What's wrong? The antidote you've been longing for has been successfully developed."

Tsukimi Shirou looked at him in surprise and couldn't help but reach out and touch the back of his hand.

The next moment, their memories and thoughts were simultaneously shared.

Upon seeing this, Investigator Shirou sighed:

"Well... that's how it is. There are only ten bottles of the antidote, which is definitely far from enough. But as for the formula, I really don't know how to make it."

“I understand your troubles, but this is something that one person can’t solve alone. You need to find a partner to work with.”

Tsukimi Shirou paused for a moment, then smiled and suggested:

"As a top-tier investigator, this is your natural advantage. Use any means necessary, whether persuasion or hypnosis, to gain control of the CCG. After that, you can simply promote it through force."

At this moment, Shiro Sakurai suddenly interjected:

"You're oversimplifying things! The CCG doesn't possess dominant power or credibility. Forcibly promoting the antidote would definitely cause a ghoul riot."

At this point, he turned to look at Investigator Shirou and pondered for a moment:

"Other investigators don't have a clear way to distinguish between ghouls and humans. Unless you plan to give all ghouls the antidote by yourself, you can only treat ghouls and humans the same."

"But that would create a new problem: the required antidote would be too numerous, and the workload would be enormous. Relying solely on the CCG would be useless; we would have to depend on the cooperation of the police and public officials."

"Furthermore, even so, there are still many ghouls who are unwilling to use the antidote and do not want to become human."

"Therefore, I will give you two simple and effective methods."

"First, we will make it public, revealing the existence of ghouls and the information about the antidote. This will attract ghouls who want to become human to come to us."

"However, this approach takes a lot of time, and the resulting discrimination issues are equally difficult to resolve."

When you learn that the person next to you was originally a ghoul, who appears respectable on the surface but actually feeds on their own kind, even if you remain outwardly calm, it's hard to see them as someone like yourself.

"Secondly, rain. First, use magic to analyze and recombine the antidote, then personally travel all over the world to bring down a magical rain that cannot be blocked by walls, trees, or the earth, and that is unavoidable and covers the entire world."

"This is difficult to solve with a single spell; a combination of spells is necessary."

Investigator Shirou nodded repeatedly, his eyes shining even brighter as he heard the last part.

"As expected of me! Great idea, it suddenly dawned on me."

"So, which method do you want to use?" Shirou Sakurai asked in a deep voice.

"Hmm... Personally, I prefer the second type of magical rain, but I don't really know much about magic. Even with your memories, I'm still not very comfortable using magic."

Even if we use quinques instead of magical rain, it will still be difficult.

The direction of quinque's capabilities is predetermined by the materials themselves; I can only deflect it.

If multiple targets are being targeted simultaneously, the material requirements become extremely stringent, making it very difficult to find all the necessary materials in a short period of time.

As he spoke, Investigator Shirou unconsciously glanced at Demon King Shirou.

"Don't look at me." Demon King Shirou sighed helplessly. "Although I am proficient in magic, I am not good at innovation. The combination magic he mentioned belongs to the category of innovative magic, which is exactly outside my capabilities."

"It seems that we can only use the first method."

Just as Investigator Shirou finished speaking, a voice suddenly came from his side.

"Leave it to me!"

Turning his head, he saw that the speaker was Shirou, the Black Dragon King, and quickly asked:

Is there any way?

"Well, we have some leads. I wasn't able to help with developing the antidote, but I can still put some use to innovative magic."

"Thank you very much! I'll have to trouble you then."

"Don't mention it. I'm very interested in such novel things as saving the world."

Investigator Shirou was slightly taken aback, but quickly realized what was happening.

In the chaotic memories of the Black Dragon King Shirou over the past four hundred years, he was either slaughtering towns and villages or chasing down those who disturbed his sleep.

"I see... Actually, I'm pretty much the same. I've always been chasing ghouls around, this is the first time I've saved someone."

As for taking in the Anju sisters and rescuing Kaneki Ken and Fueguchi Ryoko, those were just small acts of kindness and could hardly be considered saving lives.

Chapter 154 Was it really my fault that you killed me?

Chapter 154, Section 155: Was it really my fault that you killed me?

Fairy Tail World.

He said he wanted to innovate magic, but this kind of thing is really not suitable for someone with a rigid mind like himself.

So, I guess I still need to find someone to help me.

After much deliberation, the first person that came to mind for Black Dragon King Shirou was the first guild master, Mavis.

In my distant memory, before I traveled back more than four hundred years, I went to Sirius Island to take the S-class mage test and had a brief encounter with her.

Mavis, the first guild master who single-handedly developed Fairy Tail's three great magic spells, must have thought that a simple rain spell would be nothing to her.

Shirou left the guild, transformed into a dragon, and flew straight to Tenrou Island.

The destination was reached in an instant, and a huge black dragon hovered in mid-air, its Observation Haki sweeping across the area.

Sensing the immense pressure from the sky, all the creatures on the island began to flee in all directions.

Mavis stood on the treetop, looking up at the black dragon descending before her, meeting its gaze without fear:

"Acunorokia, what are you doing here? Are you after me?"

"Hello, President Mavis, I've come to ask you for help."

As he spoke, Shirou simultaneously transformed back into human form.

"Huh...? You can talk?" Mavis's eyes flashed with surprise. "Wait, even if you are very powerful, I am a ghost. Theoretically, only Fairy Tail members can see me."

Before he could finish speaking, Mavis noticed that he had rolled up his sleeves, revealing the Fairy Tail tattoo on the back of his hand.

"Oh my god...!! How come you have a Fairy Tail-themed tattoo?"

"Because I'm a member of Fairy Tail."

"Has Makarov retired? He definitely doesn't have the guts to recruit you into Fairy Tail. Why did you join Fairy Tail? Is there some kind of conspiracy?"

“I think you might have misunderstood. I didn’t just join Fairy Tail; I joined Fairy Tail earlier than you.”

Mavis was taken aback for a moment, looking at him with confusion. After a long while, she smiled and said:

"Um, are we talking about the same Fairy Tail guild? I founded Fairy Tail, you know. How could you have joined before me?"

"Even if you say that, I was indeed earlier than you."

"Hmph... Then tell me, when exactly did you join Fairy Tail?"

Four hundred years ago.

Mavis was speechless for a moment, then laughed:

"I get it! You're not here to kill me, you're just here to joke with me."

“I rarely joke with people.” Shirou paused for a moment. “Four hundred years ago, in the summer of 781, I joined the Fairy Tail guild…”

"In the battle on Tenrou Island, even the Fairy Tail Ball used by Guild Master Mavis and all the members of Fairy Tail couldn't stop the Black Dragon King's full-force attack."

"After that, having narrowly escaped with my life, I frantically searched for a way to be resurrected."

"...Later, I traveled through time and space through the Gate of Eclipse and returned to four hundred years ago."

"But fate played a cruel joke on me. I became the new Black Dragon King, losing my memory and reason, and spent four hundred years in a daze."

"Not long ago, by sheer coincidence, I finally regained my memories from four hundred years ago..."

Mavis stared at him blankly. Although the story he told was very outrageous, for some reason, she had a feeling that he wasn't lying.

"What's your name?"

"Shirou. That's what everyone in Fairy Tail calls me. Of course, you can also call me Acnologia."

"Huh...? Do you like the name Acnologia?"

"No, quite the opposite. Even after more than four hundred years, I will never forget what happened that day. That deep-seated hatred is etched into my soul. Acnologia, that is the name I hate the most."

"Then...why do you still let people call you that?"

"Because, during the four hundred years I lost my memory, I killed countless people and destroyed countless towns and countries. These sins all hang on Acnologia's head."