You guys had stopped to take a rest. 

Inuyasha: Is this really necessary? 

(Y/N): Look, everyone's well-being must be kept in mind, and Kirara must be tired from being the only survivor of the slaughter. 

The little Nekomata was on your shoulder. 

Inuyasha: We don't have time for this, what if Naraku starts grabbing shards? 

(Y/N): That won't happen. 

Inuyasha: How do you know? 

(Y/N): Because he seems like the type of guy who would have other people do his work for him before doing it himself. Believe me, Ruby, Weiss, Blake, and I fought a guy like that. 

Ruby: And he was a demon, not a half-demon. 

Inuyasha: TCH! Fine, but don't go crying to me if trouble comes this wa- 

(Y/N): INUYASHA! DUCK! 

You pulled him down as the Hiraikotsu nearly hit him! 

Inuyasha: WHAT THE HELL?! 

Sango appeared. 

Sango: So, you're Inuyasha! 

Inuyasha: WHAT?! 

Myouga: Ah! That must be Sango! 

(Y/N): That's her? 

Inuyasha: YOU WANT A FIGHT?! BRING IT ON! 

He got out Tessaiga! 

Everyone: NO! INUYASHA!

Myouga: Lord Inuyasha, don't fight her! We don't have time for this! 

Inuyasha: She started it! 

Sango threw her weapon again, and Inuyasha was knocked back! 

Miroku: The Tessaiga was pushed back?! 

(Y/N): She really is a Demon Slayer alright. 

Inuyasha: What's your deal?! 

Sango: SHUT UP! THIS IS FOR MY PEOPLE! 

Inuyasha: WHAT?! 

Ruby: Hang on Inuyasha, I'll just- 

But as Ruby got in, she noticed a bunch of insects coming this way! 

Ruby: WHAT THE?! 

(Y/N): HINOKAMI KAGURA: FIRE WHEEL! 

You killed them easily. 

(Y/N): Those bugs are Naraku's! 

Inuyasha: Wait, that means- 

You saw him nearby. 

Naraku: Inuyasha. 

Inuyasha: So, you're Naraku? 

Naraku: Resign yourself and take your punishment from the Demon Slayer. 

Inuyasha: Bastard! 

Naraku: Sango, the effects won't last much longer. 

Sango: Right! HIRAIKOTSU! 

Inuyasha dodged Sango's attack and went for Naraku, only for him to be pulled in by a chain! 

Inuyasha: DAMN IT! YOU STUPID BITCH! LET GO! 

You then jumped in! 

Sango: WHAT?! 

(Y/N): NARAKU! 

Naraku smirked. 

Naraku: To see your eyes with anger and despair, (Y/N), it gives me pleasure.

He then disappeared. 

(Y/N): COME BACK AND FIGHT ME YOU COWARD!! IS THIS A GAME TO YOU?! SANGO'S A PERSON! NOT A PLAYTHING! 

Kagome then noticed the Shikon Jewel. 

Inuyasha: Damn it! Next time that weapon comes back, I'll just- 

But Sango threw a flask of poison! 

(Y/N): SHIT! HANG ON INUYASHA! 

You jumped into the poison to stop her. 

And then you grabbed her. 

(Y/N): Sango! Stop! Naraku's lying to you! Inuyasha didn't attack your village! 

Sango: What?! 

(Y/N): He put that Shikon Jewel fragment in your body! If we don't get it out of you, you will die! ORA!

You punched her with Mimic, pulling out the Shikon Jewel shard and restoring her body to normal. 

Sango: How- Wha- 

(Y/N): You're safe now. 

You held the fragment of the Shikon Jewel. 

(Y/N): Naraku, how many people do you have to hurt until you're satisfied? 

Soon... 

You helped Sango make graves for her fallen comrades and family. 

(Y/N): I'm sorry. 

Sango: I can't believe it. I just can't. 

(Y/N): I know how you feel. I lost my parents to monsters. Sango, I know it must be hard, but I assure you, if you come with us, we can give Naraku what he deserves! 

Sango: (Y/N), you seek the Shikon Jewel shards, don't you? 

(Y/N): Yes. 

Sango: Then I feel it is my duty to travel alongside you and your companions. 

(Y/N): Thank you, Sango. 

Later... 

Sango had agreed to tell everyone about the birth of the Shikon Jewel, and she lead everyone into a cave. 

Ruby: What exactly are we looking for? 

Sango: This. 

She pointed over to mummified corpses of demons. 

(Y/N): Well, this is a horrifying sight indeed. 

Sango: Countless numbers of demons merged into one, and increased their power, dragons, ground-spiders, oni, and so on. All to destroy one single human. 

Inuyasha: You can't be serious. All these demons were afraid of one human? 

Yang: Might I remind you, you can't beat (Y/N) or us. 

Inuyasha: Oh piss on you, Yang! 

You examined the corpse of the human nearby. 

(Y/N): A woman. Was she a priestess? 

Sango: Yes. 

Inuyasha: Now it all makes sense, if demons are you opponents, then a priestess would be strong against them. 

Kagome: Just like with Kikyo. 

Sango: Back then the nobility were still in control of Japan. There were piles of people who had died in war and hunger. As the corpses and exhausted humans were eaten, in no time, the numbers of demons increased. All sorts of Buddhist priests and generals exterminated the demons , but above all was a priestess named Midoriko. She used an attack that drove out demon souls and purified them. Her power was enough to destroy 10 demons at once. 

Weiss: That's incredible! Did she purify them as well? 

Sango: Yes, of anything in this world, there are humans, animals, tree and rocks, she could purify all 4 of those souls. Shikon. 

Miroku: In the teachings of Shinto, there is one way of thinking, namely this "Shikon" is ara-mitama, nigi-mitama, kushi-mitama, and saki-mitama. All together these become one spirit, and in the flesh they live inside the heart. Ara-mitama is courage, nigi-mitama is kinship, kushi-mitama is widsom, and saki-mitama is to be in charge of love. 

Ruby, Yang, Kagome, and Shippo: 

https://youtu.be/KufiqCh3Qd4

Miroku: Human nature is correctly maintained between them. If you do evil, the Shikon's actions fall down into evil. 

Inuyasha: THAT STILL DOESN'T MAKE ANY SENSE! 

Sango: To put it simply, souls can become good and evil. 

(Y/N): Exactly. So, you were saying? 

Sango: Midoriko exoricsed Shikon and had much experience in using the spell to transform demon power into nothing. That's why all the demons were afraid of her. But even if they attacked her, they were all exorcised. Which is why to overcome her spiritual powers, a soul with massive evil was needed. 

Kagome: How did they become one? 

Sango: There was a man who was in love with her. The demons took advantage of that and possessed him. 

(Y/N): WHOA! WHOA! That's like- That's just like with Naraku! 

Sango: WHAT?! 

Inuyasha: He's right. Naraku was once a man named Onigumo, who was in love with a woman named Kikyo. 

(Y/N): He was desperate to live after Kikyo saved his life, and the evil in his heart drew several demons into possessing his body. That's how the half-demon named Naraku was born. But ... did Midoriko beat the demons? 

Sango: The battle lasted for 7 days and 7 nights, and Midoriko exhausted her power and her body was consumed. In that instance her soul was absorbed, then with the last of her strength, Midoriko seized the demon's soul and her own soul was taken and forced out of her body. Both died and the cluster of souls remained. That is the Shikon Jewel. Even though their bodies are gone, inside of the jewel, Midoriko and the demon's souls continue their battle. In truth, depending on the soul of the person who holds the Shikon Jewel, they become better or worse, it seems. If a demon or evil person holds it, their corruption increases, while if a person with a pure heart and soul holds it, they are cleansed. In those hundreds of years, several demons and humans have gotten their hands on the Shikon Jewel and on occasion, and in my grandfather's time, he brought it back home. Soon after he died from the wounds he got at the time, but the Shikon Jewel was already corrupted. 

Ruby: And that's why Naraku wants the Shikon Jewel. If he could corrupt Kikyo's heart with hatred and absorb the blood from within the Shikon Jewel, then it would be just like with Midoriko. 

Inuyasha: In other words, the jewel is playing us all for fools! 

(Y/N): No matter what happens, we have to destroy it! Sango, that castle you were at, we should head there! I have a feeling that's where Naraku is. 

There was no turning back now, with Sango and Kirara in the party, you knew it was a matter of time for all of you to confront Naraku and stop him.