Yn and sirzechs are waiting to continue there fight a rock dropped to the ground Yn and sirzechs started fighting

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Yn charges at sirzechs Yn was about to punch him but sirzechs blocks it then gut punched Yn then punched him sending Yn flying Yn charges at sirzechs then teleports behind him then sledgehammer him sending sirzechs

Yn and sirzechs starts fighting blocking each other attacks Yn knee sirzechs in the face Yn grabs sirzechs and throws him in the air Yn flys in the air to follow sirzechs but Yn gets kicked in the stomach sirzechs then grabs Yn with his devil tail and started chocking
Him

Sirzechs:see Yn I'm to strong for you to defeat me what you say to that Yn

Yn:...harder

Sirzechs:what ?

Yn:your wife suffocates me harder with her big breast and told me...I'm the best fuck she has ever had

Sirzechs:why you little

Yn:...I'm not your dick sirzechs and one thing a warrior should do is pay attention to the fight

Yn fires a ki blast at sirzechs as it sending him to the ground

Sirzechs thought:damn it he made me loss focus and got me angry

Yn lands on the ground

Sirzechs:your strong Yn but not strong to defeat me

Yn:and times up king while there's absolutely nothing I'd rather do than stand here and listen to you bluster at me till the heat of the universe I literally have a million better things to do so here's the deal I want you to hit me as hard as you can

Sirzechs:oh is that right-

Yn:now hold on you might have misheard me not half as hard not some arbitrary percentage I want you to him as hard as you can

Sirzechs:and if I don't play along

Yn:well I guess your wife was right about you

Sirzechs kicks Yn in the neck but it doesn't affect him

Yn:oh consider that nerve touch

Sirzechs:but how

Yn:because king like a soon to be broken man once said you either perfect or your not me

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Yn kicks sirzechs sending flying and go through boulders as sirzechs falls into the ocean sirzechs gets out of the ocean

Yn:see king that's what you get for not listening but since I know you have trouble following directions I'm going to give you one last chance you • me hard as you can are we clear

Sirzechs:crystal

Sirzechs flys in the air and powers up his attack

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Sirzechs:gremory hell flash!

Sirzechs fires his attack at Yn

Yn:oh how cute he named it-oh shit!

Yn gets hit by the attack as the blast go into space

Sirzechs:hard enough for you

The smoke clears reveals Yn brutally damaged

Sirzechs starts laughing

Yn:you think this is funny!!!

Sirzechs keeps laughing

Yn:it's not as funny as your face

Sirzechs stop laughing

Yn:thank you for giving me that amount of damage now stronger than ever

Sirzechs:what are talking about

Yn:ultra ego any damage I take increase my strength beyond where I was before and not only that with the god of light healing abilities

Yn heals himself

Yn:you won't put put a dent on me

Sirzechs:no stay away I'm king of hell I can't be defeated I won't be defeated

Yn:well I guess hell will need a new king after I'm done with you

Yn starts beating up sirzechs

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Sirzechs took so much damage from Yn he returned to his base out of pure damage

Sirzechs:Yn we can forget all this right I was just angry that union changing I don't like change

Yn:you don't get to call that your just human hater and those who don't have power you love the control your pulling there strings and decide there fates well no more

Sirzechs:Yn please my family needs me my sons needs his father

Yn:well you should've have thought of them instead fighting me and caring for yourself killing you wont do anything good for me because you just go back to hell but my way is more better

Sirzechs:what are you going to do

Yn:erase you from this world no ways of bringing you back no magic or artifacts or sacred gears nothing will bring back to life

Yn put his right hand up towards sirzechs face

Yn:hakai

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Sirzechs was esared and getting rid an enemy off Yn list

Yn teleports back home to the stardust planet

Rias pov

At the gremory mansion everyone was wondering what happened to sirzechs and where is he

As a servant arrived as explained that sirzechs has been killed and it was by Yn and the servant showed the fight and how Yn killed sirzechs

Rias lost a brother

Grafiya lost a husband

Millicas lost a father

Zeoctious and venelana lost a son

Rias wants to have vengeance against Yn but she knows she to weak with Issie gone it will be more difficult to get stronger as she need to train her perrage and train herself and find a sacred gear to get more stronger