JJK : With a Shotgun in Jujutsu Kaisen

'I'm not liking this' I say in my head as I look at the black-haired kid in front of me.

Looking behind I saw a familiar blonde woman who had a familiar hat on her head, in front of me and behind the black-haired kid was a silvery-white-haired man wearing oddly large blue goggles that were resting on his head.

"What the hell is this" I mutter.

Suddenly their body smirked and screamed while pointing 'cooly'

"Go GenChanMon!"

"Go Megumon!!!"

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To explain the current circumstances, we would need to go back quite some time

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[AN- Whenever a person is speaking in first person without any [NAME POV] just know that it is Gensui, 3rd POV I will mention]

Ah yes, the greatest combination made by mankind, Futon + Blanket.

It is such a terrifying entity that no one can resist such a temptation.

The only person able to do such a thing is a Mother who whoops their child's ass to make them wake up to go to school.

However, For me?

An orphan?

Let alone go to school I even lack a mother and of course a father.

Speaking of mother!

I turned my head and looked at the woman sleeping alongside me, My teacher, Yuki Tsukumo, the person who has been with me for the last 3 years, teaching me everything that there is about Cursed energy, Cursed spirit, and Cursed technique.

In that training she toured me all around Japan to complete multiple missions on her behalf but all that was reduced when people found out about me being her disciple and many assassins who hated Yuki Sensei and try to kill her and me yada yada no one cares.

For some reason they think that a person taught by her would be weak and be a liability, if that was the case she would have left me a loooong time ago, speaking of which when is my training going to end?

Well, why bother thinking such complicated stuff?

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Let's think about today's day.

An even more annoying concept.

Apparently, she has a meeting to go to, not too surprising as I already know of this, it's an annual meeting held between Special Grades, Clan Heads and Grade 1 Sorcerers, and 'The Higher Ups'.

What is surprising is that I will be coming along with her, usually, she would have just left by herself leaving a note on the fridge mentioning the meeting as she has done for the past two years.

Anyway, we need to get moving so I need to wake her up.

I quickly moved my hand out of the blanket which it was in to move to her face to flick her forehead before a realization hit.

For the past year, we have been traveling all around Japan, out of our house, and only yesterday did we return from Kyoto back to Tokyo.

After a year's worth of traveling, we were finally back to our home so I nearly forgot.

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How I hated sleep.

For these three years, Yuki had consistently slept alongside me for a simple reason.

Training.

What was the training to be exact?

Why of course, to be aware of your surroundings at every step of the day.

And this training was conducted in a very simple way. At night when we were sleeping Yuki would wake up and deliver a 'loving hand to my cheek' and I would have to either dodge, counter, or block the hit, improving my intuition and reflexes and danger sense.

Of course, such a barbaric method would provide tremendous benefits but this left Me rather unsatisfied with not being able to attack back and get my revenge so I waited and bided my time.

Until I found out that there would be some days when Yuki would do nothing, literally sleep like a rock, mostly before the important mission to help me and both have plenty of rest in case of some bad situations.

This was such a day, that he could do ANYTHING he wanted to Yuki and she would not realize it, the last time he did such a thing was to create such a contraption that would trigger 248 Shotguns in the room when she moved her left leg and shoot at her.

Which ended up miserably failing as she set off the contraption and destroyed the hotel room we were living in.

Not harming Yuki in any sort of way.

Luckily she laughed it off as a Child's prank.

Phew.

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And now I had the same chance to get revenge.

I will not be a fool and choose grandiose revenge plans like before I will now simply shove my hard, black, shiny, shaft or rather barrel of my shotgun into her mouth and shoot a fucking Elephant bullet: T-Rex version powered by Cursed energy boosting it by 5 times and-

"Wha gah huh ah hyu huying?" Asked an awoken Yuki. [What the fuck are you doing?]

"Fuck" I just muttered as Yuki hit me right in the solar plexus and shot me through the ceiling, not too uncommon as it's the normal follow-up to my revenge, sadly it failed for the first time.

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After an awkward breakfast (prepared by me) we soon left our home- wait 'our home'?

Dear god she's already family now, damn it, I guess despite all of our hatred towards each other-

"You listening to me?" Yuki suddenly asked.

"Naturally" I replied, easily lying.

Which earned a fist on my head, "If you wish to lie to me, train for another 100 years" Yuki said with her nose pointing up.

"Well I'll say it once again," Yuki said as a car pulled near us.

"No matter what happens," Yuki said seriously while throwing her bag at the person who came out of the driver's seat.

"Don't be afraid of no one there and above all else...…. Be as disrespectful as you can" Yuki finished with a gigantic grin on her face.

"Hell yeah" I replied.

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Glancing at the driver who difficulty managed to catch her bag I simply gave him a slight apologetic look and got into the car.

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Well Boring ass meeting, here we come!

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[Power stone for bonus chapter: 36/100]

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Originally wanted to make this longer but it became wayyyyyyyy too big so decided to divide it into parts, Also I want to add some depth to all the characters, especially our Mc and Yuki since the Manga gave her nothing other than make her headstrong, op, smart and fucking strong and then kill her without expanding her idea too much it was quite tragic, so I'll try to expand her character as best as I can, put down comments if you have any helpful idea, Hence this felt too much like a filler chapter, don't worry the First paragraph will come in the next chapter, or maybe not who knows :3