This is an idea that wouldn't leave me alone. There is a large possibility that this idea will quickly lose steam. However, I will take this as far as I can.
Even in a world filled with amazing powers called quirks, Izuku Midoriya was a special kid. His quirk, which is named Armiger, not only allowed him to summon a total of thirteen different weapons, it also let him perform a short ranged teleport. While there have been cases of similar quirks, there haven't been anyone with both. In fact, while some people can do multiple things with their quirks, no other person have such unrelated powers. There was also the case of his natural talent with quirk. Even when he first used it, he could wield each weapon like he used them for years. Now we see Izuku sitting in a classroom, listening as the teacher revealed his plans to go to U.A. along with his friend, Bakugo. He heard people talk about their decision and how surprised they were. Other than that, nothing else important happened. Bakugo asked Izuku if he wanted to go to the arcade, but he declined. While he was walking home, he was attacked by a villain with a sludge quirk. "A medium sized invisibility cloak," said the villain as he jumped forward, only to grab nothing. "What the?" He tried again, but Izuku kept warping out of his reach.
"This is getting annoying," said Izuku as he formed a bow and fired a series of arrows at the sludge villain.
"That won't work," said the sludge villain as he took the arrows with no visual strain. "I'm more like a liquid while using my quirk".
'How confident is this guy?' thought Izuku as he process the information the villain revealed. "Then I'll have to try something else". Izuku formed a large two-handed sword. "Let's see how you handle this, the Greatsword of the Dynast King". Izuku got ready to swing the giant blade, but was distracted by the nearby manhole flying up.
"Don't worry, everything is fine," the easily recognizable hero said as he pulled back his fist. "Why? Because I am here". Izuku heard the sludge villain curse the Symbol of Peace as All Might threw his punch while yelling, "Texas Smash!". Izuku formed a shield to block the backlash of both the punch and the splattered remain of the sludge villain.
"Okay, if he is still alive, I will be extremely confused," said Izuku as he made the shield disappear. "Do you want help, sir?"
"Thank you for your offer, young one," said All Might with a thumb up. "But I will be able to handle it. However, I must apologize for getting you caught up in my chase".
"It's fine," said Izuku, "Your hero agency is located in Roppongi in Minato, Tokyo, so you're probably not used to this area".
"Your fanboy knowledge is kinda creepy," said All Might, causing Izuku to give an embarrassed chuckle. "I will admit that you are right, I got a little lost in the sewer system as I chased that villain". Izuku nodded in understanding. He watched in slight disbelief as the number one hero emptied two bottles and scooped the villain into them. Shaking his head, he asked the hero for a quick autograph before leaving the pro to his work.
"Kacchan will be so jealous," said Izuku as he looked at the autograph his idol gave him. Hearing a nearby explosion, Izuku jumped in surprise. He looked toward the noise and saw a large pillar of smoke. Deciding to check on it, Izuku ran toward the smoke pillar. When he got there, he was surprised when he saw that the sludge villain somehow escaped the bottle that All Might have trapped him in. "Did he wake up and unscrew the bottle from the inside? No, All Might would have caught him before it got this out of hand. Maybe while he was transporting it to the police, the bottle fell out of whatever he was carrying it in".
"Why aren't the heroes doing anything?" asked a nearby civilian.
"Apparently, the villain got a kid hostage," responded another civilian. Concern at the news, Izuku glanced at the villain and what he saw made his heart skip a beat. The hostage was his friend, Bakugo, and the fear on his face was unsettling. Izuku never want to see that kind of face ever again. Without thinking, he threw one of weapons at the sludge villain. This caught the heroes off-guard and seeing a teenager appear next to the villain surprised them even more.
"Stay still, I'll get you out," said Izuku as he formed the largesword. He kept talking as he warped around the sludge villain's attacks. With a mighty cry, Izuku swung his blade downward, cutting his friend out. Coughing, Bakugo barely had a second to recover before Izuku warpped him to the heroes. Then to everyone's surprise, he warped back to the villain.
"You bastard," said the Sludge villain as he got ready to kill the kid that kept getting in his way. Izuku also got ready for battle, forming all thirteen of his weapons around him. Izuku went with a hit and run strategy while fighting. After dodging an attack, he would attack as much as he could before the sludge villain attacked again.
'With his liquid like body, none of my weapons can do anything' thought Izuku as he dodged another attack. 'It will only be a matter of time before I get too tired to dodge'. True to his words, Izuku began slowing down and taking more hits.
'Dammit, he can't keep up' thought an upset Bakugo as he was forced to watch his friend take a beating.
'This kid' thought a skeletal man, amazed at the young teenager. 'He know he can't win, but he also refuses to lose'. The man stared at Izuku's determined face as he barely blocked the sludge villain's attack. 'Maybe he is the one I'm looking for' thought the man as he gripped the nearby pole tighter, steam coming off his arm. 'I need to do this. I can last a little more' The man's body began inflating, becoming more recognizable. 'I can't just stand by as he is trying his hardest'. With that declaration, the skeletal man finish his transformation into the large buff visage of All Might. Rushing forward, All Might stopped the villain from hitting Izuku.
"All Might," panted out Izuku. "I knew you would come". With a smile, Izuku succumbed to his exhaustion.
"What a kid," said All Might before he defeated the sludge villain and put out the remain fire with a single punch."Detroit Smash!". Standing victoriously, All Might heard a bunch of people trying to ask him question. Not saying anything, he picked up the unconscious Izuku and asked a simple question. "Do anyone know where this young male lives?" Bakugo told him the address. "Thank you, now I will be going". Without any warning, All Might ran off, surprising everyone.
"So, how long do you think it will take him to realize he went the wrong way?"
The plot of this actually change like three times. First was just Izuku with Armiger, the second was Izuku and Noctis being two different personality, and now this. If you have trouble reading, that may be one of the reasons. Now for the real thing you're wondering about, who will he end up with. I decide to pair him with Female Shoto because I wanted to write a story with that pairing and decided to place it in this story.