/ 𝙏𝘼𝙉𝙅𝙄𝙍𝙊 𝙓 𝙍𝙀𝘼𝘿𝙀𝙍 /

My Love, Mine All Mine (Angst???)

A/n: Hello everyone, im going to say preemptively bc Idk if another part will come out in time... THANK YOU FOR 3K READS🗣🗣🔥🔥🔥i appreciate all your comment votes and requests, and thank you so much if your eye been reading for awhile, and thank you if your new! ily💗(yes the title is a mitski reference)

This is going to be Yandere!Reader x Tanjiro so if ur uncomfortable reading with that topic don't proceed, and if you haven't read/watched the content of season 3 spoiler warning

Warnings: Yandere, murder, blood

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"Good morning, Tanjiro-kun!"

The boy in questions head whipped around, his wine eyes sparkling a certain degree brighter as they caught on your figure. Standing down the hall while smearing a bit of blood on the back of your skirt and off of your hand.

"Y/n-chan! Have you seen Kanao-san around? We were supposed to meet for training." Your eyes narrowed at the mention of the girl, walking closer to hug him. A gesture that flustered him deeply, yet he did not deny.

"No, I don't think I have . . . " It wasn't a lie.

After all, you hadn't seen her around here. Maybe somewhere in a nearby river, where you had tortured and then . . . disposed of her. All Tanjiro could focus on was the girl.

I had to deal with her.

"But you could train with me. We never hang out anymore! I've been missing both sweet Nezuko and you." You pulled back from his embrace, bottom lip stuck out in a pout that he found adorable. Hand sliding into his as you both began to walk.

"That's very sweet of you Y/n-chan, and I have missed my time with you as well. However, I need to find Kanao-san, Shinobu-san--"

"Forget about her!" You snapped, the sudden raise in your voice making the air wind from his lungs. A specific suddenly aggressive demeanor emitting from you. One he wasn't familiar with.

"I-I mean, if Shinobu-san hasn't asked for you yet, I am sure she has been found."

•.___.•

And then there was the time at the Swordsmith Village.

Mitsuri had gotten awfully close to your love. Her little dainty hands trailing up his chest to lock around his neck while she whispered into his ear, breath tickling his neck at her closeness.

A burning rage had been deeply seeded in your chest ever since.

You were her Tsuguko, she was your master, and you had shared plenty of pleasant memories with your superior. So many so that your skills now were on par with her own.

You had felt great fondness and sisterly love with her but nothing could compare to the emotion you felt when you had met Tanjiro.

An insatiable pulse of love surging throughout your being. Driving you forward every day, every kill. Love can make you do crazy things after all.

Needless to say, you wanted her dead.

Every time Tanjiro would say her name, even earlier when in the brotherly gesture of doing his sisters hair to match the Love pillars. And now you flipped between the endless attacks of the Upper Moon Four demons dragon tree Blood Demon Art.

"Wahh! I can't do it anymore! I think I'm going to die." Mitsuri waved her arm, her final attack against the demon.

"No! You can't give up!"

Don't take the pleasure of killing you away from me.

"Love breathing! First form! Shivers of First Love!" You threw out the attack, and just as the flash of pink from your blade illuminated the forest floor the demon had began to disintegrate into ashes.

"Yay! We're saved!" Mitsuri ran up to you, hands flying around you shoulders as she hugs you tightly. "Good job, Y/n-san!"

Even with her warm and lovey demeanor you couldn't help the insatiable urge to see her blood. You couldn't help your hand gripping harder over the handle of the knife in your hand.

You couldn't help sinking it deep into her heart.

"Eh? Y-y/n-san?" Her arms went limp as her stamina truly ran out, falling to her knees before you while her bright green eyes teared up. Looking up at your pleasure filled ones with confusion.

"I truly am sorry. I liked you. You were like a sister to me. But love?"

You began to laugh, pulling the knife out before putting it back into your belt. Grabbing her face with your blood stained hands while flashing a sadistic smirk.

"I only ever first felt true love when I met my Tanjiro-kun. He's mine! I will not let you get in the way of that."

"Now," You punched yourself in the nose and immediately tears sprung to your eyes, allowing them to fall freely down your face as Mitsuri dropped to the ground. Dead and in a pool of her own blood.

"Tanjiro! Tanjiro!" You called out his name repeatedly while running in his direction. Finally spotting the group of people in the middle of an open field.

Tanjiros face matching your fake distress in real distress seeing the endless tears streaming down your face. His battered body on Nezuko's back, clinging to the demon as if you were hugging your love.

Wailing into her kimono before sobbing,

"M-mitsuri . . . w-why would she do that? Why did she sacrifice herself for me? That cruel demon! Stabbing her right through the heart!"

Tanjiros face contorts in pain and sympathy, his heart twinging as he is reminded of his idol Rengoku. Seeing you this broken over your mentor making an increasing hatred for Kibutsuji Muzan rise in his chest.

"I'm so sorry Y/n-chan . . . "

Days had to begin to pass, Mitsuri's death hitting no one as hard as it hit you.

The event bringing you so much happiness, though genuinely mourning her loss. Tanjiro hadn't left your side, seeing your heartbreak he had spent all of his days taking care of you. Being closer to him then has ever.

Now you were laid against his chest as his hand trailed up and down your back. Your mood had been unusually somber today, but it had all been a rouse. Wanting to be closer to him. Your love.

"You know," Your soft, melodic voice startling him as it broke the silence. "Mitsuri used to have many philosophies about love and relationships."

Even at the mention of your departed mentor he still was heavily relaxed, your soft breathing lulling him almost off to sleep. You hands trailing up his chest as they unwrapped from his torso.

"Mmm... Is that so?"

You nodded, nuzzling your face into his chest while speaking.

"She said, 'The time we have with our loved ones can be limited. That is why we must express our feelings . . . " His wine colored eyes clashed with your as a feeling of tightness rose in his chest. It was slightly uncomfortable but he couldn't tell from what. An underlying sense that he couldn't quite identify, however one overpowered it.

Love.

"I love you, Tanjiro-kun. No matter what happens I always want to love you. That's all I want--" Your words were cut short by his lips on yours, everything around you fading as the taste of his lips sent shocks of pleasure through your body.

His movements gentle and with the utmost care, yours more needy and hungry. Finally pulling away as you say,

"You're mine. My love, mine all mine."

•.___.•

Word count; 1249