Disclaimer: First Chapter
Today, I plan on Streaming on Twitch, and answering questions about my plans for this story.
If you want to find my Twitch channel, the link is on my profile, but I also plan on putting up a link to the broadcast on my twitter as well.
Story Start!

Awkward silence.

"For a guard cat, you don't seem like you care about your job ya know." Shizuku pointed out, completely done with the household chores. She refused to live in a dirty home, and she wasn't going to allow it to become dirty again either. Most of the time, Kuroka was just lazing around the apartment, she only ever seemed to do her job when Naruto was out and about, or asleep. Though, whenever her sister was around, Kuroka always made sure to disappear, no doubt to avoid getting attention drawn to her. Still, if she was good at her job, she would take the risk anyway. "Not a very good servant ya know." Shizuku added in snidely.

Kuroka scoffed.

This snake was in over her head.

"You're a Mizuchi, you think I don't know how your powers work? You can only turn into water when your submerged in it or surrounded by it, even then, you have to rely on tricks to make people believe you actually turn into water to avoid getting hit nya." Kuroka reminded her, seeing as Shizuku couldn't hide behind the fact she was 'immune' to physical attacks. All she did was make a clone of herself with water, and make it look like she was getting hit by the attack, before she reappeared nearby. Naruto's recount of those events were close, and though he got her abilities wrong in nature, his plan still worked seeing as she needed a moment of prep to use that trick. "I can beat you if you step out of line nya." Kuroka raised a hand up.

Shizuku smirked at her, with a wide, snake-like grin.

"Not wrong, but Naruto won't think highly of you if you do that ya know." Shizuku added, Kuroka's endgame was so clear to her, that she knew that Kuroka would never attack her unless she truly did something to hurt Naruto. "What, don't like competition ya know?" Shizuku had seen that look of annoyance and jealousy sent to her by Kuroka in the morning, and she knew that the woman was still a young Nekoshou. Barely in her 20s, while she herself was in her 200s easily. Shizuku had seen many Nekomata, the general species Kuroka came from, and knew how to read them in general.

A very loyal youkai breed, though they were never good at admitting it, and they were prone to jealousy. Kuroka tried to pretend that she wasn't the jealous type, but she was no different than the rest of her species. All that was different was the fact she was tainted, but that didn't change who she was at her core.

A little kitten.

"You? Competition? Nyahaha, don't make me laugh. Look at our bodies, it is obvious who will win this contest... anyway... I don't care how many of you get with my master, as long as I get a piece, that is all that matters... I've been in a harem before, I know how this goes nya." Kuroka forced a laugh, and Shizuku sent her a sadistic smirk, knowing exactly what Kuroka had wrong with her.

It was easy.

Kuroka was telling the truth, she had been a member of a harem, she was experienced. Shizuku could also see genuine affection for Naruto, though Kuroka put on the slutty personality to try and hide it. No doubt, the last time she was in a harem, she had no feelings for her previous master. That relationship must have been purely physical in nature, or something where both parties benefited from their arrangement. This time, Kuroka was experiencing what every woman experienced at some point who had somebody important to them. Kuroka was assuming that being a member of an emotionless harem, and being part of a harem of somebody you had feelings for, were the same thing. This time, she held affection for the Harem King that she belonged to, meaning she wanted him to look at her and give her special attention.

"So... how did a criminal like you, end up in Naruto's service... from the stories, you became a Devil, and killed your Master ya know... You went from killing your Master, to becoming the servant of your species mortal enemy ya know." Shizuku questioned how Kuroka had found herself in this situation.

Kuroka scoffed.

"Yasaka."

"The Leader of the Kyoto Youkai... I see... that traitor... it was her who signed the peace treaty with the Demon Slayers ya know." Shizuku knew of that woman. She had taken all of her followers, and created a safe place for youkai to find a home for themselves. She had signed the agreement that said, so long as a Youkai didn't pose a threat to humans or attacked them, the Demon Slayers wouldn't hunt them. Well, that mostly applied to the youkai who lived in Kyoto, those who still identified as Ayakashi, and refused to take part in Yasaka's agreement were fair game if they strayed too close to humans. At the same time, no Ayakashi with their pride in tact would have ever signed an agreement that put them at the mercy of the Demon Slayers.

Shizuku did not have a high opinion of Yasaka, seeing as the woman had saved the lives of her followers... at the price of limiting their homes to approved areas, and preventing those who wanted revenge, from taking their revenge.

"Traitor... didn't she save a lot of youkai from extinction?" Kuroka was pretty sure that was how that happened.

"My family, my kin, the Mizuchi were wiped out by a Demon Slayer family... but she refused to take revenge... because my family had refused to take part in the treaty. We wanted to stay in our small village ya know." Shizuku had just been a young girl when it happened. She still remembered it clearly though, she had begged Yasaka to allow her to rally some forces in Kyoto, and take revenge. That didn't happen though, the treaty was too important, and the near-extinction of her people wasn't something that Yasaka could 'risk the lives of all youkai' for, not when it was a family who refused to take part in the treaty.

Yasaka's name was not respected among the forest Ayakashi, because they all knew that if they didn't submit to the treaty, she would never avenge them if they were wiped out by the Demon Slayers. She would hide behind those false years she shed, and pretend to mourn the loss of life, while being on the same side as the Demon Slayers. They held no respect for her, other than respecting her power as a Nine Tails.

'... but... if she had taken revenge for you, then the 11 other Demon Slayer families would have started a genocide on all of the Kyoto youkai, because she broke her word... she's just trying to protect her people.' Kuroka didn't say that out loud, but she could understand it. She had done the same for her sister, when she killed her previous master. She had only become a slave, giving up her freedom, so her sister could have a better life... at the time. Yasaka viewed her people as an extended family, and just because she was a youkai, didn't mean that she could just sacrifice everything to take revenge for a clan of ayakashi who refused to take part in a peace treaty. "... Don't Ayakashi still attack Demon Slayers... why don't you just take revenge, and be done with it nya?" Seeing as most of the clans had weakened, it should be a simple matter for Shizuku to wipe out a small family of them.

If she wanted revenge so badly, now that she had strength, she should just take it for herself. She didn't need Yasaka, and she wasn't a youkai, she was an Ayakashi who had refused to take part of the peace treaty.

"I can't... they died off ya know."

"Sucks to be you nya." Kuroka didn't really feel much for her there. The girl was holding a long grudge, and she had tried to take it out on Naruto. Her anger was misplaced, and it was hard to feel sympathetic for somebody who tried to kill a innocent. "If you ever hurt my master, I'll show you what I did to the other ayakashi that tried to hurt him." Kuroka didn't need to leave that threat hanging.

Shizuku got it.

"Though he is rough around the edges, Naruto seems to have a kind heart... before I tried to kill him, I watched him ya know. I watched him, and I feel a little shame for how I planned on killing him ya know." Shizuku wasn't lying there either. After seeing how Naruto could act with Koneko, how he seemed to have a genuine respect for her... heck, even how he allowed Kuroka to act the way she wanted around him, showed that he was open and held no resentment for either ayakashi or youkai. He seemed the type that treated everyone the same, he was kind to those who needed his kindness, but tough with those who didn't. Not to mention he was willing to forgive her for what she did, and still let her stay in his home.

Kuroka frowned a little, but she did not in agreement, seeing as her master was a very kind person to those who needed it.

"So, if you just want him on your side, why seduce him nya?" Kuroka could understand her own motives for the same thing. The Nekoshou were a stronger sub-species of Nekomata, they never really had a large population to start with. She wanted to bring her species up in number, and having good genes was the start to that.

Why did this girl want Naruto sexually, and not just try and convince him with words.

Shizuku's smirk widened.

"I'm the only Mizuchi right now, getting him to my side is needed... but I see no reason why I can't personally benefit as well ya know." Shizuku had a race to rebuild from scratch. The irony of a Demon Slayer, being used to father an entire new generation of Mizuchi, when it was a Demon Slayer family who wiped them out, was just too sweet. She couldn't get revenge against the Demon Slayer family who did it, but she could besmirch the very core name of "Demon Slayer".

Naruto wasn't just the target of her seductions, he was also a tool that she could use to not only restart her species, but also take her revenge out against that family as well.

Kuroka hummed.

"I think we might be able to-"

"No, we can't... you see... you might be fine with Naruto forming a harem, but I would prefer to be his one and only ya know... snakes don't like to share... ya know." Shizuku would prefer to keep her prey to herself.

The front door opened.

"Guess who bought an AWESOME bike today! Shizuku, you want to go for a ride!?" Naruto burst into his home with a giant grin.

He was still excited about his new bike.

She could make a sex joke.

"I would love to ride you nya."

'I could make a sex joke, or I could not, and just go for a ride.' Shizuku silently went to the front door and nodded to Naruto. If she was constantly making sex jokes, and not just holding normal conversations as well, her status with him would never improve. That was partially what was wrong with Kuroka's approach, as an attractive woman, she wouldn't have to try as hard as other women to get a man. '... if she could just hold a normal conversation, she would be an actual rival.' Shizuku thought to herself.

Men were simple creatures, sure, but they had standards as well. They didn't just seek sex, they sought companionship like all humans. Shizuku knew that she would need to show she could be, not just sexual relief, but also a genuine companion to Naruto. That would make him more comfortable, and it would get her closer to her goal. For a girl with her body type, she had to try harder, and not just attract a man physically, but emotionally... while also reminding the man that despite her looks, she was a grown woman and could be used to please him physically.

Though, if Naruto didn't give into his base urges in a reasonable amount of time, she would just do him in his sleep.

She wasn't above that.

Chapter End!
Please Leave Me Lots of Nice Long Reviews, But No Flames Please!

-Note-
A small pet peeve of mine, is when people try to make characters innocent and virgins. Sometimes it is fine, when there is valid reason to do it.
Kuroka, a character in her 20s, who was part of a harem... is not going to be a blushing virgin.
Shizuku, a 200+ year old who mentioned (in canon) that she was okay with being a prostitute, used a man's body to masturbate, and had sex with a man in his sleep... is NOT going to be a virgin.

If a character is a slut, that doesn't make them a bad character. It is all about how well a character is made, slut or virgin, as well written character can be great either way.