The Sharingan Hyuga

Earth planet, 4th universe;

Newyork city, the city that never sleeps. Even though it was just called that because it's busy 24/7, now it became the city that won't be to sleep. Why? It's because almost half of the city was destroyed by the extraterrestrial organisms. In a simple world, Aliens.

An alien named Loki of the world of Asgard, waged a war on the humanity of earth to rule it for eternity because he failed to do so on Asgard. As he was alone, he took the help of an alien named "Other," who is a servant of a Titan named Thanos. The Other provided him an army of "Chitauri," a cybernetic alien race governed by a hive mind, who in turn served Thanos. The Other also provided him a Scepter, a magical artifact that has mind stone installed in it.

With both of these powers, Loki waged war on humanity but his plan was destroyed by a group called Avengers, consisted of a superhuman soldier named Steve Rogers aka Captain America, who was a successful experimental subject from 75 years ago. the next one is Thor, the god of thunder, the prince of Asgard, an alien, who lived for thousands of years.

The Third one is a failed experiment, Bruce manner, which in turn created an alter ego Hulk, a Large 8ft tall, bulky and green colored monster, which has anger issues. The fourth one was Tony Stark, aka Iron man, the multibillionaire tycoon, and an engineer, who flies around in a red metal suit. The other two, are Natasha Romanoff aka Black Widow, and Clint Barton aka Hawkeye. Despite being a normal human, they are too skilled to be called normal humans too.

After Tony stark carried a missile out of the portal and send it towards the army of Chitauri army that was waiting somewhere in the galaxy, he lost unconsciousness and began to fall back into the portal. Just then, Shuichi who was traveling through the rifts by using Yomotsu Hirasaka saw the incident and immediately caught him and slowly begin to descend on to the new world.

Meanwhile, on the ground, as they just closed the portal, Captain America pointed in a surprise, "who is that?" As Thor frowned while looking up, Captain America too looked at the sky, upon getting closer, they saw someone in white robes slowly descending with Tony Stark in his arms.

As Shuichi landed on the ground with Tony Stark in his arms, he looked around the surroundings, where there is a lot of destruction and yet amazing Architectures, each building was at least the size of a bijuu. Just then, Thor raised his hammer towards him with a frown on his face, "who are you? Are you one of his supporters?" Shuichi smiled and washed his hands, "relax, I'm not an enemy. He's your friend?"

While they were looking at him warily, Shuichi put his body down and said, "It doesn't seem like he's going to live longer." Without caring about Shuichi, Thor immediately walked towards Tony Stark and ripped the headgear and looked at his unconscious face and Captain America put his hands on his arc reactor and felt nothing.

"Don't worry, he'll be fine," as both of them heard him, they turned around and Shuichi pointed his finger towards the Hulk, who was jumped down from the building on to the ground. Looking at unconscious Stark, Hulk got angrier and roared, which immediately woke up Stark. As he opened his eyes in a shock, "what the hell?" He looked at the three of them and asked, "please tell me nobody kissed me."

As Steve and Thor shook their heads with a smile, Shuichi commented, "well, death almost kissed you though." As Tony Stark asked while he's on the ground, "whose voice is that?" Both Thor and Captain America moved side and Stark asked, "who are you, kid?" Shuichi sighed and shook his head, "even if the world changes, species changes, time changes, this one question never changes..."

Meanwhile, on the top of a building, far away in the city, The Ancient One was wondering looking in the direction where the Avengers are, "who is this one from other-dimension? How come I'm feeling nothing from him? He's an ally or a foe? I need to observe him."

A few hours later, at Triskelion, one of two headquarters for S.H.I.E.L.D., located on Theodore Roosevelt Island, on the Potomac River between Washington, D.C., and V.i.r.g.i.nia, Nick Fury was looking at Shuichi, who seemed like a cosplaying harmless high school teenager, "so, your name is Shuichi Hyuga and you are not from this world. An alien, huh?"

Beliving that they might not know the concept of multi-dimensions or multi-universes, he went along with the flow and nodded, "yeah, I'm basically what you call, a traveler? It's just that I travel from world to world and enjoy it in peace. As I said, you don't need to be wary of me. I'm not your enemy." Nick Fury frowned, "but you are neither an ally too."

Shuchi replied, "well, that depends on the behavior of you people, though. Honestly, this earth, sky, air, space, etc... nothing has been built by you humans. Only the buildings. And the land, which the so-called nations were just captured by your ancestors. So, I don't feel the need to take permission from you just to live. Still, since you appoint yourselves as the protectors of this world, you may monitor me all you want for your safety. I have no problem with that. I'm only here to tell you that."

Without his permission, Shuichi stood up and looked at him with his floral patterned blue eyes, and said, "you did the right thing to not press the button, with your left index finger and made those soldiers or whatever, stay still. You can tell them that they can up their machines down and tell that guy in the upper right corner in the dark to put his bow and arrow away."

While Fury stood up in a shock, Shuichi smiled, "okay it's nice meeting you. After I disappear, you don't need to bother searching for me. I'll send you my address on my own when I found a good spot. See ya." With a smile on his face, Shuichi waved his hand and a rift opened up beside him before entering it. He immediately called Maria Hill, "you have his pictures, right. Use the full power of our satellites and scan all the world. I need every detail of the report on this outer space alien.