One Shot Book {Kimetsu no Yaiba}

Muzan X Tanjirou

Marriage au

Possessive muzan X Tanjirou

No one pov

Kamado Tanjirou or should I say Kibutsuji Tanjirou is a married man. He's your normal guy that work at a company as one of the office worker,despite his husband being the company CEO. Everyone in the company know him as one of the shy and secretive people. Because of how secretive he is,none and I mean none of the worker know that tanjirou is a wife/husband to their handsome boss that many try to seduce. And tanjirou would like to keep it that way even though the raven originally want to make an announcement so that all of his worker know who tanjirou belong to. But just one look from his cute husband make him shut up,of course he would get a reward afterwards for keeping his mouth shut just like how his adorable little husband wanted too. And it's delicious I tell you😏.

Now I wonder what would happen if someone decide to 'touch' what belong to the raven? Or should is say Kibutsuji Muzan?

All hell broke loose.

Today is a normal day for tanjirou,wake up in the morning in his husband arms with the blanket cover their naked body. Tanjirou smile and kiss his husband nose before he slowly unwrap himself from the sleeping raven,not wanting to wake him up just yet. He stretch and wince in pain and rub his lower back with a little pout. He let out a sigh and stand up with a help of a nearby desk. He limp his way to the bathroom to start his day.

He got out of the cab and pay the driver the amount that being said on the meter. He wave the watched as the taxi drove away and turn toward the big building of his work place. He enter the building only to be greet by his friend loud voice.

"TANJIROUUUU!!"

The blond shout as he capture the red head male in a hug,crying on his shoulder. Tanjirou whom already familiar with this only rub the back of his best friend.

"What happen this time zenitsu?"

He asked, it's already become a daily thing for the blond to run at him the moment he step inside the building,talking his ears off about how his group date fail to get him a girl...again. Tanjirou only sweatdrop at this but nonetheless try to calm his friend down,saying that maybe one day he will find the one.

"You're the best tanjirou! If only you were a woman...."

A tick mark appear on the red head male forehead as he smack the blond head as hard as he could before he huff and walk away from there. There come the nonsense again.

"Than I'm sorry that I'm not a woman"

"TANJIROUUUUU!!! IM SORRY!"

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It was almost afternoon when muzan secretary came inside his office with a man that he had never seen before. The man was tall and dare tanjirou say handsome,but of course his husband is the most handsome man in the world for him. The secretary clap her hand twice to gather all of the other worker attention.

"A new guy gonna join you guys today,Introduce your self"

The man 'humm' and turn to face all do the worker,who now all staring at him. Some even fangirl a little at how handsome the new guy is.
He tch.

"Kazuto,23"

The man coldly said as he glare at all of the worker that flinch at how cold the new guy tone. Kazuto look around the office with bored,his gaze stop at a certain red head male that send him a welcoming smile. He send the red head male a smirk,making tanjirou blink his eyes twice in confusion. Looks like the new guy found his target.

Its lunch time mad tanjirou is on his way to his husband office with homemade bento in hand. Having lunch together,is one of the conditions if the red head male what his husband to keep quiet about their marriage. And tanjirou doesn't mind since he got to spend time with husband on their lunch break. To lost in his happy thought he didn't notice  a certain new guy following not to far behind.

It's happen so fast that the red head male couldn't even comprehend what's happening,just a second ago he was happily walking toward his husband office and a second after he being pinned to the wall by the new guy,kazuto. The bento long forgotten on the floor with it cap open,spilling the food out.

"K-kazuto-kun?"

He meekly called out,trying to fight the right grip on his wrist that being pinned on top of his head. Tanjirou eyes widen when he felt a wet muscle on his neck. This couldn't be happening right? No way no way no way-

"K-kazuto l-let g-go!"

He shout as he trash around,pulling on his hand even harder to be free from the strong grip. He flinch when he felt a cold hand goes under his shirt. His eyes widen in horror.

"no,no,no,no,NO!"

*BAM!*

Tanjirou watch as the figure in front of him fall and the grip on his wrist free. He look up to be met with his husband,glaring at the fallen figure.

"M-muzan..."

He weakly called,eyes welling up in tears as he hiccup. The raven click his tounge and pull the smaller male to his chest, whispering sweet word to his ear while rubbing his back. Whoever this guy is,he would pay for what he did....muzan promise him that.

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It's already night when they both got to their home, with their hands intertwine in a tight hold. Neither want to let go. The moment they enter their house,tanjirou push the raven against the close door and lead the raven hand under his shirt. Tears falling from his eyes. He felt dirty,he felt like he betray his husband by letting that new guy touch him. Even though he fight with everything he got to push that guy away.

The raven understanding by what his husband wanted lean in for a kiss. Their lips move in synch in a slow movement. Muzan hand travel to the red head male pink nipple,pinching and turning it making tanjirou let out a soft moan. The raven take it as his chance to enter his tounge and explore the wet cavern. His hand unbuckle tanjirou pants and slip in to his ass.

The rest is history....

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At a dimly light room,in the middle of it is kazuto being tide up on a chair. Head down while his body's trembling in coldness. Infront of him is the raven with a pocket knife in hand. Eyes narrow dangerously at the man Infront of him. He dare to touch what's his after all.

Let's just say.....kazuto just disappear and could never be found again.

THE END.
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.sorry if there's a wrong grammar and I hope you enjoy😊

I'm sorry if it a bit confusing I have a hard time while writing this😅