It's Christmas in Ikebukuro today everybody is sitting with each other enjoying with their family except the one of only Shizuo he has some issues when he hears that Izaya is returning to Ikebukuro and tries to make sure this time he'll die.

"*Sigh, I can't believe that that flea is returning thought that I've scared the sh*t outa him, hmph this time I'll make sure he'll die once and for all" said Shizuo.

At the moment.

"So, listen Izaya I don't know what are you thinking but are you sure that it's safe to go back to this place I mean that monster is still here" said the man.

"I'm fine with that I've might as well taken allot of damages from him in the previous battle but let's see what happens now" said Izaya.

The car arrives at the center of the district and dropped Izaya off as he starts to look around.

"Boy sure nothing changed while I was away" Izaya starts to have a fresh air walk when suddenly.

BOOOOOM a sign post was been thrown infront of him.

"IZAYA YOU'VE MIGHT AS WELL GOT AWAY THAT TIME BUT THIS TIME I'LL MAKE SURE YOU'RE A REAL GONER I'LL CRUSH YOU" as Shizuo rushes towards Izaya and uses a car door appears out of nowhere to do a dash attack, a road fence to wipe him up and finally a vending machine to throw at him but Izaya dodges it.

"Heh, Kamaitachi's edge" Izaya just went behind from the body and starts to slash rapidly.

"GRRRR YOU FLEA" Shizuo grabs a street sign and starts to swing it all over and over and over.

BOOOM, BAM, BOOM.

On the joyful day of Christmas was been turned into the worst case scenario Christmas.

At the mean time.

"Wow thanks allot for the present you guys" said Denshin.

"No problems we really appreciate if you earn them" said Saku.

When she suddenly notice something on the screen.

"Huh, what is that?" Denshin looks closely into the screen seeing Shizuo and Izaya messing with each other.

"Those 2 idiots saved the realm of dreams and hopes but in exchanged their worlds suffers despair caused by them" Denshin sigh as she moved towards the screen and starts to connect it to another screen.

Back at Ikebukuro.

"New Hobby" Izaya slides his leg to trick Shizuo but he missed it.

At the moment when they are in the middle of the raiding battle suddenly a flash went by that covered their entire vision.

"WHAT THE" shouted Shizuo.

"*Sigh* sounds like this time Denshin needs our help" said Izaya.

As the flash went by and then.

"Huh?" Shizuo looks around what he saw was just buildings like always except that there was a strange forcefield that covers the entire city.

"Where are we?" said Izaya.

As a paper falls down.

"Huh!?" they picked the paper up as it was been written "You 2 are my favorite friends but you 2 never ever learned anything thru your journeys at all, so how about helping another person that comes from this universe named Rentaro Satomi" the note was written by Denshin.

"Seriously, well it's true I've skipped all the holidays and tried to end you up but I appears like I was doing the wrong thing" said Shizuo.

"It's your fault we all ended up in this damn dimension what is this place anyways?" said Izaya.

As they all looked around and saw nothing.

In the meantime.

"Hey, Rentaro what are we going to do today" said Enju as she walks down the street.

"Well what do you want to do today" said Rentaro.

"I was wondering If we could…" Rentaro notice 2 mans are standing on the street arguing.

He rushes and shout out.

"HEY WATCH OUT A CAR IS HEADING YOUR WAY" shouted Rentaro.

"HUH!" the 2 all looked at and saw a car.

"DAMN" Shizuo runs to the safe zone on the left side while his mortal enemy dodges into the right side.

"Phew that was closed thanks buddy" said Izaya.

"No problem, what are you even thinking about arguing in the middle of a danger zone" said Rentaro.

"Sorry this punk over there he and pissed me up" said Shizuo.

"Who was it that started the disastrous" said Izaya.

"It's because you don't deserve to live Izaya" said Shizuo.

"Seriously after all that stuffs we've been thru" said Izaya.

"SHUT THE FUCK OFF" Shizuo walks to the signpost and picks it up and throw it towards Izaya making Enju and Rentaro shock.

"Alright now we can settle this" said Shizuo.

"*Sigh* this Christmas is so bad I should've stayed in another place for a while" said Izaya.

"Yeah you should've" said Shizuo.

"HEY YOU TWO, YOUR COMING WITH ME" shouted Rentaro.

"Why?" said Shizuo.

"I'm Rentaro and I'm a promoter of the securities of this city" said Rentaro as he shown out.

"Oh, okay (Why the hell could a boy like him become a police it's still too young)" Izaya and Shizuo might as well felt disbelief but the actions and the style that boy has makes them feels like he has real weapon so they have no choice.

"Alright, fine" said Shizuo and Izaya as they all walk with Rentaro.

At Tendo's place.

Shizuo was sitting outside alone he just waited for several of minutes and then.

Izaya stepped out of the door with a expression that doesn't seemed really like the main thing.

"What's going on?" ask Shizuo.

"Well I asked them a few questions and it appears like this is no ordinary world, have you notice the force field we've saw earlier" said Izaya.

"Yes" said Shizuo.

"The force field is keeping humanity away from being threatened by a race of virus that evolves and mutate insects into giant parasites" said Izaya making Shizuo feeling shock.

"Apparently, a few years ago there was an unknown virus that was been spread all over the global, mutating humans that are not under the age of 13 or 10 into giant and blood lusted parasites including the insects, those who got infected by the virus and managed to survive without being mutated all earned special abilities and gifts such as increasing speed and strength, mutating body parts into weapons, strong instincts and that's all" said Izaya.

"Really, so how did they managed to keep their city safe until today" said Shizuo.

"They've used the help of the ones who got special abilities to fight along with them" said Izaya.

"Then he must've misunderstood that I'm a…" said Shizuo.

"He thought you were a new Gastrea that's the name of the parasites" said Izaya.

"So, your saying that these Gastreas are humanity's largest threats" said Shizuo.

"Yes, precisely and in order to survived they need to use in the powers that are like yours" said Izaya.

"What about the-" got cut off.

"The children's that were been mutated are preferred as initiators people claimed that they are tools but I guess to you it's not, but for the ones who aren't apart of the security systems they called these children's as cursed child's" said Izaya.

"Cursed Child's, Initiators, tools are you kidding me why can't the world accept them?" ask Shizuo.

"Since the initiators are a part of the Gastrea systems since they have a part of themselves are Gastreas" said Izaya.

"So what's going to happened now" said Shizuo.

"Well humans and these initiators are living with each others right now but humans doesn't seemed to show respect towards them they think that the initiators are a large disease that will soon threatened them 1 day" said Izaya.

"How on earth could we stand this" said Shizuo.

"Dunno maybe we're here to help the world of understanding these Initiators" said Shizuo.

At the mean time Tendo, Rentaro and Enju all sneakily listened to their conversation.

"Hmmmm you said that this man with shades got infected to the Gastrea but he didn't became monster" said Tendo.

"Exactly from earlier I saw him throwing a sign post without even using all of his strength believe me he used 1 hand" said Rentaro.

"Is Gastrea virus started to evolve into stronger ones" said Enju.

"No they were always effective towards humans like us that bartender was just lucky" said Rentaro.