Taming a Yandere (1/4) *

(A/N: The next few chapters will be very sex heavy but they are relevant to Mami's character so, if possible, read them. You guys can skip the sex if you don't want to read it but do skim through the chapters because it's relevant to Mami's character and story.)

It was Saturday and Chizuru was busy with the preparations for her play for the whole day, leaving Kazuya free.

So, he called Mami to his apartment again for their usual monthly session at around noon.

Mami thought that she was getting her clutches around Kazuya and he'd sooner or later be completely under her control. She was just looking for the right opportunity.

She'd realized that he didn't talk to her much and assumed that it was because he felt guilty for what he did with her. This made her think that her plan was working. Her actions were slowly bearing fruit.

She was completely oblivious to her feelings and didn't realize that most of the time, her thoughts revolved around Kazuya. Although her intentions weren't good, she'd already forgotten about her plan to ditch him after getting together with him. Right now she just wanted him obsessed with her so that she could be with him.

Hell, these feelings weren't even new. She'd liked him even back when they were dating. It was just that he seemed so pitiful all the time that she couldn't help but ditch him because she was annoyed.

The presence of her other persona just twisted her thoughts to make her think that the reason was that he was no more than a toy for her to play with, but that was never the case.

She, herself isn't completely clear about her thoughts, all she knew was that she wanted him to be obsessed with her. She hadn't even thought about what she'd do after that.

She didn't realize that Kazuya had already partially succeeded in what he set out to do with her with the use of these monthly sessions.

When she got his text that was inviting her to his place, her face lit up with joy.

She didn't do anything and told her folks that she had plans to hang out with her friends and that she was leaving.

She told them that she'd probably be back by the night.

Her dad used to be an influential political figure back during the time of the Shinomiyas, Shijos, and Fujiwaras, but now his career was down in the dumps.

He was far too busy saving his ass even after two years, that he couldn't pay any attention to his daughter.

…

"Heya Kazu-kun!" Mami greeted Kazuya at his door with her usual greeting.

"How are you Mami?" Kazuya was only barely paying attention to Mami as his attention was on the prompt over her head.

[Do you want to apply the Chastity Seal on the recipient: Mami Nanami?]

'Yes.' He mentally agreed and expected something to happen.

"Kazu-kun?" Nothing happened and instead, Mami called him since he was just standing in a daze.

"Come on in Mami. Take a seat. I'll get you some water." Kazuya led her to the couch and went to get some water since he wanted some time to think about what the seal did.

'Okay… I feel some sort of connection with her. I can roughly feel her general direction.'

Kazuya tried to focus on the seal and saw that some information popped up.

[ Seal Type: Chastity Seal

Name: Mami 'Yandere' Nanami

Status: Potential Slave

Loyalty: 40(10)/100

Lust: 50(70)/100

Submission: 25(15)/100

Status: Anticipatory, Happy, Lustful, Possessive, Obsessive

Seal Abilities: Sense…]

Kazuya was surprised by the unique pop-up that was so similar to his usual status panel and so different at the same time.

'What's with the brackets after with stats? Her other personality, maybe? What's with the ellipsis in the abilities? Do I have to explore them myself… The biggest thing is what is this seal type… Are there more types of seals?'

Kazuya decided that he's spent enough time thinking about the seal and he might as well spend that time exploring the various uses that it might have with Mami.

Kazuya went back to the living room and saw Mami fiddling with her phone.

"Mami." He said her name and she got up from the couch.

"Kazu-kun?" She tilted her head cutely.

Kazuya didn't say anything and walked up to her, wrapping his arm around her waist.

"I forgot the water," He said and kissed her.

"Mhm~" She moaned into his mouth as she felt him slip his tongue into her mouth.

'Can I control her arousal with the seal?' Kazuya thought that and willed the connection he had with Mami to increase her arousal.

"Mhmm~" She started grinding herself on him as if her arousal had just been amplified.

[Lust: 55(75) + 20/100]

'Damn, her other personality is thirsty.' Kazuya realized that he could control her arousal to a certain degree with the seal.

They kept making out heatedly as Mami felt like her lust today was unusually unbearable.

Kazuya slowly unbuttoned her top and threw it to the side after taking it off of her. He did the same to her skirt.

She was now left wearing white flat heels with black stockings and matching black underwear.

'She was fully prepared today, eh?' Kazuya noticed the garter belt that she was wearing, connecting to her stockings. He also noticed something else.

'Is that a tattoo? When did she get that? And a crotch tattoo at that.' Kazuya didn't examine it closely for now and assumed that it was something that she might've ended up doing recently.

Mami was running her hands through his hair, too immersed to realize that she was already practically naked.

Kazuya's hands went to her butt and pulled her up to wrap her legs around his torso.

"Mhmm~" He held her ass and squeezed it roughly as she moaned into his mouth.

He brought her to the same bedroom as the last time when she came to his apartment.

She was grinding on his already erect cock that was covered by his pants with gusto as he walked to the bedroom.

Something he realized about the [Sense] ability of the seal was that he could sense the state of her arousal and how close she was to cumming. He assumed that it was related to their proximity. He would be able to sense more of her when he was closer to her.

He opened the door to the room and lay on the bed, putting Mami above him as she was still wrapped around him.

She was still grinding herself on his cock. Kazuya decided to play with her tits and bring her closer to her climax since he was curious about another ability that the seal should have.

After a few minutes more of him fondling her and her grinding on his cock, Kazuya felt that she was close.

Her moans were louder and she seemed more enthusiastic with her actions.

'If I have this ability then…' Kazuya willed through the connection that Mami shouldn't be able to orgasm for now.

'It worked!' He could feel with [Sense] that Mami was stuck on the edge, unable to orgasm until he allows her.

She'd felt that she was just about to cum but the release never came. Instead, it left her more desperate than ever.

"Mhmmmm~" She whined while moaning into his mouth and desperately ground her pussy on his covered cock.

Kazuya, realizing her predicament, let her cum. He wasn't doing any denial play for now.

"Ahhh~" She came with a scream and pulled back from the kiss.

When she pulled back from the kiss, she was straddling Kazuya with her wet pussy directly above his covered cock.

That was when Kazuya got a good look at her tattoo.

'That looks more like a… Fuck, it's from the seal. I guess that makes sense since it's a seal, but still…' Kazuya saw that it was an intricate heart-shaped design, the thing that sold him on it being something from the seal was that there was a chain surrounding that heart and a lock in the center. That lock had the letter K inscribed on it.

Kazuya willed the tattoo to disappear. He didn't want to explain its existence and the reason behind it to Mami. That's when the tattoo faded as if it was never even there.

'Thank fuck…'

Mami was too occupied with the afterglow of her orgasm and didn't pay attention to Kazuya who was busy looking at her new tattoo.

Time to finally break her in today.

"Mami…" Kazuya looked into her eyes with a gentle yet passionate look.

"Kazu-kun…" She seemed so cute with her erotic yet innocent expression.

He flipped her over, putting her under him. Then he took off her bra and panties, throwing them to the side. Mami was left wearing nothing but her stockings and garter belt.

"You're beautiful, Mami" Kazuya gently ran his fingers through her hair.

His praise seemed to do wonders for Mami as she seemed to be smiling brightly.

Then he turned her over again, making her lay on her stomach while staying above her.

Then he started sucking her neck, wanting to give her a hickey. He opened up his pants and freed his cock from its confines.

"Haah~ Kazu-kun~" Mami sucked in a breath when she felt Kazuya's cock touch her bare pussy.

"You'll be mine from today, completely." He whispered into her ear before nibbling her ear. He rubbed his cock on her bare pussy, lubing it up.