Inside a ruined base, a single being stirred, he was a male human with dark brown hair and eyes, a face that spoke of eons, but never looking over 25, and a body that spoke of unending war.
He looked at the ruined laboratory he was in, reminded by the time he was in the uac base on mars, but without the demon and the alarms.
The room was eerily quiet. With burnt equipment and chared skeletons. His armour was off to the side, with metal restraints barely holding it in place.
He broke out of the chains he was in and walked to the armour, breaking the restraints and dawning it on.
He walked out of the room and encountered more dead people, with any resemblance to humanity burned away to ash.
He walked past, having seen similar scenes in the past.
He walked down the blackened halls, wondering what happened. He remembered killing the dark lord, and that would mean all demons outside off hell are now dead. So what happened here? Could it be something other than demons? But he couldn't get distracted, as he finally found the exit. Outside was a beautiful day, with clouds in the sky and the sun shining down.
He found peace. There wasn't a demon in sight, and the air felt pure. There wasn't a trace of demonic presence on the planet.
He was free. So he wandered, not knowing what to do, he spent so long fighting demons that the prospect of not fighting was foreign.
He came across a town, but it was empty due to a coal reserve burning nearby, the roads starting to crack. So he left it alone and continued to walk.
Days flashed in the blink of an eye, with forests and plains in his path, until it wasn't. He found a city in the distance.
He would have been happy if it weren't for the portal in the sky. He knew a lot about portals, having studied the one in his old base. So he knew it was going to be bad.
He started to run, the landscape blurring as he sped past, faster than any rocket.
He eventually entered the city, and he saw into the portal above, and he froze.
He knew what was coming out. Not because he fought it, but because he watched it on tv. The chitary. And he realized what city he was in, New York. He was in marvel, the MCU if he wasn't mistaken.
He was in his favorite movie series.
He was going to have fun.
He saw the famous scene of the avengers forming, and he grinned. He sprinted towards them, with them only noticing too late.
He jumped, flying over them and punching a falling chitary it the face, turning it into a fine red mist.
He landed, then jumped again, into the top of a building. And began to fight the aliens on top, punching and hitting the non humans into mist. And he laughed, his vocal cords raspy and unused, but still functional.
************
Thor looked at the armored being, literally punching through the forces infront of him, laughing a terrifying tune. The sound raspy and deep.
He didn't know who this being was, but it wasn't normal. But he was distracted by a chitary soldier firing at him, so he got into a fighting stance. The rest of the team followed and they attacked, fighting through the chitari and towards the massive portal in the sky.
The mysterious figure also followed, heading towards stark tower. Literally climbing the skyscraper with nothing but his bare hands, which got thors respect. But now wasn't the time to acknowledge such a feat, right now, they needed to focus on the invasion.
Thor began to fly higher into the sky, taking down chitari that were falling to the ground, in the corner of his vision, he saw his green friend, hulk, destroy a leviathan. Impressive.
He was distracted by such a feat and was punched a piece of the building.
************
He found a problem quickly, the chitari weren't a challenge, and he was growing board, but stark tower was surprisingly very climbable, so once he reached the top, he saw Loki.
Of course the reverse was also true as Loki saw him.
"Who are yo-" he was cut off by doom gently taking the tesseract out of Loki's possession and shattered it.
The resulting explosion cut the portal off and cutting a ship passing through in half, and Loki to be flung like a ragdoll off of stark tower, barely saved by Thor.
But doom wasn't paying attention to all of that, he was busy looking at the space stone. It was interesting. It worked a similar way to his portals back home.
Of course the stone alone was much weaker than him, but he suspected if all 6 were together, they would be able to match him... Maybe.
But that wasn't important now, and he deposited the stone into his armour, giving him back his beloved portals. To bad he didn't have Vega to open the portals for him, but he was probably somewhere.
His mind drifted, now that he didn't have a target, he realized he really was in marvel, and that meant a lot of things, but most importantly if all, demons existed here. Sure they weren't the same as the multiverse demons, but they weren't good.
So he had a new goal, gather the infinity stones and snap away all of demonkind and make sure they could never attack earth.
************
Directed nick fury was having a serious headache, not only did the avengers fail to stop the invasion, a third party stopped it for them.
Who this third party was he did not know, but the thing he did know was that a being that powerful needed to be kept under surveillance. So he sent out agents to dig up information about this being and if they can be controlled.
He did not like loose ends or unknown powerful beings, but if he could understand them, he could control them, right?