This is a Harley Quinn and Naruto crossover fanfiction only.

Other Franchises will be included.

Author's note this story is inspired by Harley Quinn's Red Mark by DragnBoi65 we were given permission by DragnBoi65 so we hope you enjoy the story.

As soon as the two friends landed in the universe Naruto decided to do what he always does, no matter how many times Sasuke told him this was a reckless and potentially deadly thing to do, he injected Chakra into the universe establishing it all over the universe. Having this universe access to Chakra was something that could cause wars and battles to become even more deadly.

This was something Kaguya had once regretted giving to humanity, and she saw how quickly they turned that energy into many inventive and horrible ways to kill each other. "Well now that you polluted this universe, we need to figure out where the hell we are and what the fuck we are dealing with, or we could end up making a bigger mess than it already is."

Naruto looked at him and began to shake his head, "Look Sasuke, it is not such a major issue, we just need to find a few weeks' worths of newspapers, and that should give us a pretty good idea of what universe we landed on, but something tells me we are in one of the DC universes because unless I am mistaken, isn't that the Batsignal being projected on those clouds over there?"

Sasuke looked at the place and saw that indeed it was the signal that means they are somewhere within or near Gotham, great, just fucking great, "How the fuck did we end up in this garbage dumpster of a world? Gotham makes Hell look like a vacation spot, and you know I am right 'cause we've been to Hell."

Naruto told his friend not to worry, he has many memories about this sort of universe so he already has a plan, "Look we are just going to have to take up the identity of people in this universe, and just because we don't want to deal with the red tape bullshit, how about this, I will be Red X, and use that stuff that if I screw up, it will blow me up to chucks, and you why don't you become Red Hood, I know you can do better than Jason ever could."

Sasuke looked at him and simply said as long as he doesn't have that stupid red bat printed on his chest, and they deal with the problem of getting their hands on such a volatile and explosive substance as Xenothium, why? cause the suit Red X you will wear is powered by that junk, that is why.

"Will you stop worrying your suit is going to be just as problematic as mine so stop complaining, how about we start doing some mercenary work and we take the ones that offer the best pay, that should solve our cash flow issue, and maybe the targets we get will have stuff we need to make our suits and power them. See, no biggie, we get to make cash which is what I like, and you get to kill people you otherwise consider pests, win-win."

Sasuke looked at Naruto, and he suspected that there was more to this than he mentioned, and much to his shock he saw the designs of the armor, it was clear Naruto planned to use Chakra Metal in the armor, something that Sasuke was against since this could lead people into reverse engineering a single piece of that armor into something truly dreadful or something that would make their work needlessly difficult.

Sasuke knew that even if he mentioned it, the idiot would ignore him, like always, he does whatever the hell he wants and to hell with the consequences, sometimes Sasuke wished Naruto would think of the bigger picture and think of what his actions would cause, but he was ever the hyperactive knucklehead, no matter how much he lives, that is an aspect that seems will never change.

It will take a few years but if they worked hard enough, their reputation would be established across the world, it is good that the cold war was still happening and Sasuke knew from his memories that at least two major wars were going to happen and that only means one thing, war is a perfect chance for a mercenary to get some bloody good business done and earn a profit.

If they had any differences between is how they dealt with enemies, Naruto as long as the enemy is a woman, he wouldn't kill them, he simply either capture them or let the go, Sasuke, on the other hand, was not so gentle, if the enemy tried to kill him, he would do the same to them, regardless of gender, age, or nationality, he called equality in battle. Naruto often complained that he should think of all the beautiful young women that would never be born if they killed the women who were sent against them.

Sasuke simply said that as long as the enemy thinks that they will go easy on them if the one attacking happens to be female, they will conscript more and more women to send and attack them, all is fair in love and war, and the enemy if they want to get rid of them, would consider any advantage even if it means sacrificing a dozen women at a time.

Naruto called that barbaric, to which Sasuke reminded him this is war, the enemy will do anything to guarantee victory, even if it was something that in any other circumstance would be considered either deplorable or disgusting. Naruto was not happy to hear that but understood that they would have to divide their missions, if it was a guard or escort mission Naruto would do it, but if the mission involved only combat Sasuke would be the one to take that mission.

As time went by and they fought in one battle after another, their contracts became more and more lucrative as their reputation grew, they were known to be two mercenaries that were sent on missions that were considered where failure was not an option. They fought against the forces of North Korea and kept a vast number of innocent civilians from dying.

It was during the conflict that was called the Korean War, that Sasuke's warning came true, a beautiful young woman who pretended to be a waitress at a local bar pulled a dagger from her clothes and attempted to murder Naruto, but even after she did that, he merely knocked her out and upon questioning found out that she was an assassin sent to kill him or his friend, the enemy however didn't know his name, they only knew him by the nicknames their allies called them, one wore a red helmet that covered his face and the over had one that had the image of a skull painted on it and was crossed by a red X.

Their allies called them Red Hood since he was an expert archer and sniper, and Red X for he never missed when attacking someone or someplace. They both wore armor that even American soldiers consider rather odd, some even joked that they must smell worse than a wet dog wearing that armor since they were probably sweating buckets.

They never took off their helmets when on a mission, in fact, there is only one place they ever took them off and that was where they live, but nobody knows exactly where that place is. Some of the enemies joked with each other and said their home must be in the darkest pits of hell, their brutality in combat and their tenacity to always achieve the objectives of a mission, made several enemy generals wish that they could contact them to offer them a better deal, but they simply didn't know how to contact them.

As the war continued they actually used kids, and one of them was ordered to steal the wallet of one of them, and it just happens that the kid stole the wallet from the one they call Red X. It was lucky of the brat, who had it been the one called Red Hood, he would not have made it out of that situation alive.

The fact is that their time helping the US during the Korean War had them does most of the work by doing covert sabotage missions and even some assassinations. They never got recognition for any of them, but it never was expected to begin with, they did however make a ton of money and the only thing that went wrong is that they got a horrible reputation with the United Nations, being called something akin to demons of war.

The US proudly told the UN ambassador to cram it, these two saved the lives of thousands if not millions of innocent South Koreans and even managed to do missions that would have seen entire platoons of his countrymen die, because there was simply they could pull off these missions like Red Hood and Red X did. The fact is that for ten years North Korea offered a substantial reward for the heads of them, but when they instead got the heads of the idiots who actually tried to complete that death contract, they realized that each head had a word craved into the skulls.

When arranged correctly it reads, keep this up and you are next. That is when the hit on them actually was called off. Vietnam however was for one of them, a hell of a lot of fun, meaning Red X absolutely went and had as much fun as humanly possible. Red Hood, however, remembering what really happened during this war, called the entire war a shitshow, because they could easily get more done by backing the people of Vietnam, and telling the French that they are getting kicked out for abusing the land they dared to call their colony.

The US President called Red Hood a communist, for daring to suggest that they should in fact back the people trying to overthrow the colonial government, Red Hood, however, was not going to let this happen, and in several interviews, he flat out said that they should be on the side of the oppressed, and as such by doing so, Vietnam would become a great ally to the US, one that could, in fact, be a blessing.

Many considered that nuts, but some realized that the divided country, North Vietnam only became communist because they needed someone to help them stand against a mighty invading world power, and the interviews with Red Hood began to take up more and more support, till finally, the US decided to back Ho Chi Min instead of the French, and while doing so, and with the help of Red Hood the entire region was unified, the war of independence at last ended after two years after they gained the support from their US allies.

France for quite some time considered Red Hood a traitor to the allies and would call for his arrest and execution, but time and time again, Red Hood proved that he was not only right in what he did but gained major support from places that otherwise could have become their enemies had they done things as they initially intended. As the French were evacuating, Red Hood was seen standing with now President Ho Chi Min, and saying that America will always help the oppressed obtain the freedom they so richly desired and managed to do without having to suffer the sacrifice of people they do dearly love. The Americans are liberators, was a motto that was easy to see and proven to be true.

The Vietnam war had been very profitable, and with the help of Red Hood, Vietnam turned their fields and their plantations into becoming one of the world's best producers of life-saving medicines. In fact, they developed a miraculous medicine that with a single pill would cure a person of any addiction.

This means that drugs that once were considered illegal and harmful, in fact, could be taken by people, and thanks to Red Hood using his money to lobby and provide campaign funding to many senators, street drugs were legalized, regulated, and strict standards were set, when Red Hood was asked why would he do this, it was simple, people are going to do this crap if this is not done, they will spread even through school playgrounds.

"I don't give a flying shit if this makes the criminal underworld vast amounts of money, you peddle street-made junk and even dare to try to get children involved, and I will fucking kill you and stuff your carcasses with your junk like a fucking thanksgiving turkey! You got me! You keep that shit out of the hands of kids, and do not trade in school playgrounds, or else."

That is when the criminal drug cartels began to realize that he wasn't kidding around, and did as Red Hood demanded, and by doing this he prevented thousands of people from ending up ruining their lives, and prevented prisons from becoming overpopulated, such as in the long run the US was able to save millions of dollars which could be used for other things, such as improving the national infrastructure, improving train railways and safety measurements, creating clean alternative sources of energy.

Red Hood and Red X did their parts, and thanks to having these two, many disasters they knew would have happened were prevented, granted the oil companies were up in arms when they actually introduced a car that was an actual electric car able to recharge and was cheaper to make that the ones that used oil-based fuels. Red Hood and Red X had quite a few assassination attempts, but in the end, the same thing that happened during the war happened again, sending the skulls of the assassins back to the people that hired them.

It didn't take long before people learned that messing with these two was never a good idea, when dictators, warlords, and even drug cartel bosses decided that it would be a far better business for them to stop messing with them and tried to show them a lot of respect, they figured that they would eventually warm up to them and eventually be more willing to help them, as friends, rather than piss them off and become their enemies.

Thomas was a very good doctor and excellent surgeon, Red Hood often joked that it was because despite becoming a doctor he apparently managed to keep his heart, to which Thomas accused him of saying that to become a doctor a person needs to be heartless, much to his surprise Red X said that he too thought that the heart removal was part of the surgery done on med school graduates.

Martha laughed and told them both that is not the case at all, but people do tend to become more and more cold and detached from people after watching so many of their patients die, it is not that they want to, it is that doing so is a lot less painful.

Years pass and the two friends seem not to have aged at all, his friends Thomas and his wife even took up lessons on how to defend themselves from Naruto and Sasuke, but as the training got tougher and tougher Thomas asked him if this was truly necessary, they are living in relative peacetime. Sasuke begins to laugh because he couldn't help it after hearing Thomas.

"You have got to be kidding me, there is no such a thing, the peace your speak of is nothing but a lie, people may experience brief pauses in the carnage of war, but the war will start up again, look at your history, what is the key that separates one age to another? War, you categorize history according to what happened while a certain war happens or aftermath, there is only one thing you can count on, you must continue to train and become strong, and as such when conflict happens you shall be ready for it, or is preparing to save the lives of each other and your children not worth it?"

That is when Thomas realized that what Sasuke said is cold but never less true, so Thomas and his wife trained very hard, to become extremely capable combatants, but they never lost sight that they were doing this for their children and for each other. "Do you honestly think that training them this hard is actually doing them any good?" Sasuke looked at Naruto after he heard him say this.

"Don't give me that crap Naruto, they are only as good as Genin, and you know it, at most they can handle your basic mugger, but if they are surrounded by many of them, they are not strong enough to deal with a group of them, that is why you gave each one of your Kunai, so don't give me that since I know that you have come to care about them."

Naruto had to agree that living in the home of the Waynes has given him the feel of just that, having a home, a family, a place he would want to return to after every mission and miss them when he is away from them in extended periods. So of course he gave them something to call for them should the shit hit the fan.

As he continued to train and study, he continued to improve his gear, his helmet, and even some rudimentary weapons, once he tested his own upgrades he decided to do the same upgrades on the armor and gear of his friend, while doing so, he wondered if he should focus on upgrading his own gear and just leave him the blueprints of the upgrades until he began to think that was a recipe for disaster, Naruto could take those blueprints and sell them to make the stuff soldiers wear and use to be even more deadly, causing wars to happen sooner and become even more violent, causing him to miss out since regular grunts would be able to take care of things, and his services would no longer be as needed.

As the friends began to wonder if there was someplace, a hidden place where they could build for themselves a place where nobody knew it was there, a place where they could relax after missions, or build a home where they would know it was safe from prying eyes. That is when Naruto told him that maybe there was one place, the place where in that other universe people became mega-stinking rich by selling precious metal.

Sasuke was shocked that he was essentially telling him to make in this universe a version of Wakanda, well it could explain all this damn Chakra Metal, and all these other metals he made from other universes, but it also would prove to be a major pain in the ass, since if they actually made that happen they would have to join the fucking UN, and yes Sasuke was still angry with them for daring to try and accuse him of either being a warlord or a war criminal. They never accused Naruto, but they jumped at the chance to accuse Sasuke.

"I still don't know why those UN bastards only seem to accuse me, maybe I killed someone they knew or killed someone that was paying him off, but this is getting annoying, every time I killed has been either as a mission or because they were rotten people that were making people suffer. For them to focus solely on me, well Naruto you might not have killed as many enemies, but you do still kill some, and they have not said a thing about it."

Naruto simply shrugged his shoulders and told him he has the devil's luck, it could only be that he was lucky in avoiding all that bullshit and because this happens they only have one other person to focus their anger on. "Look Sasuke, it is not like they can ever kill you or get a conviction on you, they are barking dogs trying to get attention and do this more than likely to make themselves look good, for trying to stand up against a person that they have presented to be a ruthless mass murdering psychopath."

Sasuke told Naruto that he didn't want to hear this from the person who wanted to slaughter a company because it takes ten minutes for his ramen to be ready to eat! Naruto glared at him, "That is a low blow, even for you, as for me killing them, I wanted to put the fear of god into these fools for false advertising, if the package says instant, I expect it to be instant not wait for ten minutes!"

"You started the fucking company, which is why you threatening them did not end up with you either in jail or getting your ass sued off, you even stole the recipe for that ramen, it's not their damn fault that you have to heat water to a boil, on a fucking wood stove! The major wait is the actual heating of the water, considering how fast it is now to cook said noodles, most people are actually quite happy that it is so fast, convenient and people are able to buy them. But not you, because it is not done in less than a second, you want it to be done instantly!"

He then looked at Sasuke and began to glare at him, "Then tell those fucking snails in your tech company to get off their fucking asses and build an electric stove already, make sure it has a self-cleaning fucking oven, cause all this fucking talk about ramen got me hungry and I could go for a pep pizza, and no I don't want to wait a fucking half hour!"

Sasuke was quick to remind him that the stove in question is entering testing, at the Stark Industries Lab, according to Howard he had more pressing matters to finish that would save actual human lives, so the stove testing was only done when the Lab had some free time in their testing schedule.

"First off, don't give me that shit, it's your fucking lab, second, Howard Stark and Stark Industries are in the Marvel universe, and you are in the DC universe how many more fucking times must I remind you of that, speaking of which how long till you finish your version of the Iron Man suit?" Sasuke told him within two weeks, testing the weapons is taking longer than expected, not to mention that the Arc Reactor is giving him some trouble, since the person who was supposed to provide him with the Vibranium, is sitting on his hands with a thumb up his ass.

That is when he looked at his watch and slammed the cover a little bit to hard and a hologram of a blue orb began to display, "JARVIS, how long till the testing on the fucking electric stove and oven?" The hologram cleared his throat like he was a British noble and simply answered that it was scheduled in three weeks. Seeing that there was no way around this he decided to ask JARVIS about the weapons being tested and when Naruto heard all the weapons being tested, he walked over to Sasuke and asked him if he was getting ready to either start or fight in World War Three?

He looked at Naruto and told him that the situation with Russia can only hold for so long, and their covert acts will only serve to antagonize the ally powers, so World War Three could very well be coming in the near future, and as he knows he likes to be ready for anything. "Will you stop your bitching already, you know that we have been granted access and permission to land and stay on Paradise Island thanks to Hera, so you can wait three fucking weeks, we got a ton of shit to do and that probably will not be enough time!"

Naruto looked at Sasuke and began to laugh, "I nearly forgot about Paradise Island, you really have to appreciate that mother dearest managed to get the queen of the Amazons to actually allow us to land and live on the island at all, especially after what Herakles tried to pull that shit."

Sasuke glared at him, "I will not call her that because it reminds me of that horror novel, and the last thing we need is Hera being pissed because we are being disrespectful, I don't give a shit that she somehow adopted both of us, but till I hear that she approves of that disgusting nickname, I will still refer to her in a professional manner." Naruto was quick to mention that the only reason he actually didn't do as he did, was because he was still scared of what Hera would do to him if she was really pissed off.