Blaze:okay in this world Yn was a student of union academy after union figures out that he has no powers so they bullied him and his girlfriend cheated on him

Phyrra:who was his girlfriend ?

Blaze:Lucy heartfilia she cheated on him with natsu so after Yn saw her and natsu have sex as Lucy was saying bad things about Yn so he left union as he was on his way home till his was taken by a wormhole and arrived to a world called the demon slayers

Ozpin:demon slayers

Blaze:basically specific samurai swordsman and swordswoman fight demon who hunger on humans and can turn them into demons so the demon slayer Corp are the only ones that can destroy demons with the specific swords that can hurt the demons let's watch the universe

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[There should be a GIF or video here. Update the app now to see it.]

When Akaza was about to punch rengoku in the gut to kill him someone comes in and punch akaza

Making akaza slide back it reveals to be Yn that punched akaza

Yn:rengoku you okay

Rengoku:yeah just scratch up and blinded a little bit but I'm fine

Yn:rest my friend and go to tanjiro and he's friends I'll handle this demon

Rengoku:carful my friend he's a third rank demon so we don't know what he has in store

Yn:your right but I'll make sure he doesn't use his full power go now

Rengoku:come back to us specifically to your wife

Yn:I'll come back and I'll be with my wife when this over

Rengoku:good luck

Rengoku leaves to go back to tanjiro and his friends

Yn stares at akaza

Akaza:I can sense your strong even close to me but to bad you have to die but don't worry I'll bring your head to my master

Yn:your not killing me your life will end then there will be another demon off the rank

Yn brings out his sword

Akaza charges at Yn

Yn:dragon breathing form 5 dragon illusion

Yn starts swing his sword as it starts making multiple dragons charge at akaza as it looks like it has no effect to akaza till he fell multiple slashes all over his body

Akaza:when did he cut me multiple times

Akaza sees Yn not there

Akaza:where are you

Yn:behind you

Akaza sees Yn in the air

Yn:dragon breathing form 1 dragon tail

Yn slashed on Akaza chest as it looks like a dragon tail just cut him as it makes him slide back

Akaza charges at Yn and tries to punch him but Yn blocks his hits then Yn gut punch him as Akaza spits out blood

Akaza:how is this guy so strong

Yn:dragon breathing form 3 dragon rush

Akaza tries to block but Yn was so fast as a dragon appears and crashed into Akaza as he sees a sword stabbing him as Yn pulls his sword out of Akaza then both of them see the sun starting to rise as this scares akaza

Akaza:no the sun I need to return to home

As Akaza tries to retreat but Yn won't let him escape thanks to Yn speed Akaza won't get away from him as Yn kicks Akaza in the face then Yn grabs him by the leg then throwing him back to field where the sun up as it starts burning Akaza

Akaza:if I died I'm taking you with me bastard

Akaza charges at Yn

Yn:dragon breathing form 11 dragon stardust

Yn charges at Akaza as Yn bladed part of the sword started becoming dust as the dust hit Akaza then Akaza punches Yn in the face Yn didn't feel any damage to the punch

[There should be a GIF or video here. Update the app now to see it.]

As Akaza felt something in his body as his body started evaporating

Akaza:you may win the battle but the war will continue till every human is eaten or turned human

Akaza was Finally evaporated as the Yn blade returned to its hilt then Yn puts sword back to its sheath then Yn goes to the others as they see

Few hours later

After arriving to the hasirama base as the nurses started healing the others Yn was in his room with his wife

Mitsuri kanroji

Mitsuri:I'm glad your back safe and sound my dragon cutie

Yn:glad to be back my pink flower but it's not over till Muzan is permanently dead then our life's can be at peace no worry of demons hurting or turning people into demons or eating them

Mitsuri:I hope so too no more demons in the world we can have a family like we wanted

Yn:true but still wonder what's happening to my family from my world probably still worried sick about me that just disappeared out of nowhere

Mitsuri:maybe when this is over you can go back to your world but come with you we can start our family there

Yn:that sounds wonderful honey

Yn kisses Mitsuri

Mitsuri:let's head to bed we need our rest

Yn and Mitsuri goes to bed while Mitsuri cuddles with Yn )

Blaze:so what do all of you think

Lucy tears up

Lucy:Yn I'm so sorry

Ozpin:such brutality towards the demons

Salem:and Elegance towards the demon slayers

Erza:only the sword as there only weapon

Weiss:and the sun as there weakness

Jaune:the demon slayers must've trained hard to get to that position

Blaze:okay next universe is

(Yn harem)