When Shanks dies at the final battle he is sent to the Highschool dxd world as a baby Gremory. When Shanks turns 10 he regains all of his old memories and ability.
It has been 11 days since Rias agreed with the raiding game and Raiser won but using Issei as a hostage for Rias to surrender. Shanks is getting ready in his normal gear then he looks at his pocket watch and its 8:30 pm and the engagement party is about to begin.
Shanks teleports to the engagement venue in the phoenix domain, When he arrives he is confronted by the guards.
(Gaurd 1) Halt who are you.
(shanks) I HAVE NO NAME BUT I AM YOUR DEATH.
at that moment shanks uses conquerors haki to knock out all of the guards and make's his way to the ballroom just in time.
-Raisers pov-
welcome everyone to Raisers engagement and now i would like to introduce you to my bride Rias gremory.
When rias appears by magic circle the doors are kicked down with so much force that they fly of the hinges and make it to the other end of the room at that point all the guards rush at the intruder but they are kocked out cold when shanks uses conquerors haki to force them into unconsciousness.
(Raiser) WHO DARES BRAKES INTO RAISERS INGAGMENT PARTY.
(???) _in a draconic voice_ RAISER I THOUGHT I TOLD YOU 4 YEARS AGO THAT IF YOU GO ANYWHERE NEAR MY SISTER OR MY MOTHER THAT YOU WILL FACE THE DEATH DRAGON GODS WRATH
when the smoke clears one person that hasn't been seen in 4 years appears and scares Raiser
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-Shanks pov-
(shanks) well raiser i am here to kill you because you have angered the dragon god of death who also happens to be the strongest dragon who has ever been because well let me show you. OPHIS GREAT RED COME TO ME NOW.
at that moment two people appear
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when the two dragon god appear shanks says something to them and then great red walks over to Rias and then grabs her.
(Sirzechs) Shanks what is the meaning of this firstly you go missing for 4 years and now you come back now to stop this engagement I agreed with.
(Rias) Older brother why would you do something like that you know he is a scumbag who only uses women as slaves and sex slaves.
(Sirzechs) OH I know Rias i just thought you would hate him and end up killing him because them we could have the phoenix territory to our self's.
(shanks) Ophis get to Rias peerage and protect them and great red get my mother i have two people to deal with.
Shanks walks through the room slowly and notices his mother and grayfia crying and then he says
(shanks) relax you two i am so sorry i was gone for a long time but now i am back properly.
Shanks continues walking until he makes it to the front of the room and releces his aura and says in a draconic voice YOU TWO HAVE DONE HISIOUSE THINGS IN YOUR TWO LIFES BUT LET ME START WITH RAISER. THE DEATH OF ALMOST 500 INICENT HUMANS ALSO THE BRIBERY OF THE DEVIL COUNCIL YOU ALSO RAPED AND INSLAVES WOMEN FROM AROUND THE HUMAN AND UNDERWORLD AND IF YOU SAY THIS IS FALCE I HAVE PROTH OF THESE INCEDENCES.
NOW "BROTHER" LETS START WITH THE RAPE AND INSLAVEMENT OF ONE SILVER HAIRED BEAUTY KNOWN AS GRAYFIALUCIFUGE THEN YOU USED A FORBIDEN MAGIC TO MAKE SURE SHE COULD NOT RUN AWAY FROM YOU OR TELL ANYNONE THE TRUTH. THEN WE HAVE THE ARADACATION OF THE NEKOMADAS BECAUSE YOU THOUGHT THEY WERE A THREAT BECAUSE THEY HAD THE POWER OVER LIFE AND DEATH AND YOU USED THE EXCUSE THAT ONE KNOWN AS KUROKA WENT INSANE BUT THE TRUTH SHE WAS ONLY PROTECTING HER SISTER FROM THE EXPEREMENTS YOU HAD THAT SIENCETIST DO TO THAT POOR GIRL WHO IS IN THIS ROOM NOW WOULD SHIRONE OR KONEKO COME HER I NEED TO REMOVE THE SEAL THIS SCUM PLACED ON YOU. BUT BEFORE TWO PEOPLE NEED TO DIE.
Then shanks takes out his saber known as griffon and then he coats it is a black aura known as armorment haki and slashes off the heads of both Sirzechs and Raiser phoenix killing them both in a instant.
At that moment venelana, Grayfia, Rias, koneko and the 3 remaining devil kings with lord and lady phoenix. Venelana, grayfia and rias have tears in there eyes and jump onto you and engulf you into a hug and then you kiss rias on the lips along with Grayfia and venelana.
(Shanks) I missed you 3 so much i cant explain but in the last 4 years i have trained in the dimensional gap and that's where i meet Ophis and great red and beat them in a fight and then they pledged loyalty to me. I am sorry that it took this long for me to come back but i also had to get evidence and here it is.
suddenly 2 missive binders full of evidence appear and then he gives it to the 3 devil kings and then nod there heads and two of them leave. leaving serafall behind and she jumps and hugs shanks almost braking his spine.
(serafall) Shanks i have missed you so much and we will look through all the evidence you have provided and from now on you will have someone keeping a eye on you. and this is for you leaving me all alone. at that moment serafall kisses shanks and then says it will be me keeping a eye one you.
This makes shanks look in fear for one of the first moments in his new life and then he remembered never anger a woman. Then shanks goes up to koneko and places two fingers on her forehead and chants a long spell in Latin.
(shanks) Hoc est maledictum memoriam signavit evellam, now that's sorted how about we all go home, Red Ophis you two can go back to the dimential gap now.
shanks and venelana grayfia, rias and her peerage head back to the gremory manor and then shanks heads to bed but before he does that he grabs a bottle of rum and then drinks the whole thing and goes to sleep.
