Disclaimer: I do not own the rights to Percy Jackson nor My Hero Academia. That honor goes to Rick Riordan and Kohei Horikoshi.

Chapter 2: Percy vs The League

Midoriya's POV

Izuku Midoriya blinked as he grasped the situation he's in. Moments ago he had been in the clutches of the Nomu, while Tsuyu and Mineta were about to be grabbed by the man with many hands. Now the three of them were high above those two in what appeared to be a massive watery being. He turned to Tsuyu who was staring wide eyed at a fourth person with them, not noticing her blush. The man was tall, estimated at least 190 cm tall, with black hair. He was topless which allowed the three to study his chest. The man had scars all over his front but he also had an eight pack. He wasn't barrelled but lithe, similar to how Midoriya looked after his training. Midoriya then looked at the man's face and had to take a step back. He was angry, releasing a large amount of killing intent towards the two villains on the ground. His green eyes blinked as his expression changed to one of a concerned parent as he looked at the three.

"Are you three alright?" He asked as he raised one of his hands. Suddenly a small amount of water covered Midoriya's covered hand, surprising the boy as his finger and thumb began to heal. Midoriya pulled his elbow sleeve off of his hand and no doubt they were back to normal. Midoriya started to think rapidly. Was that man in the water when the three of them had gotten away? How else would he have known about it?

Tsuyu summons the courage and answers him, "We're fine but several of our classmates have been scattered in this building. Also one of our teachers is down there." The man takes a look at where she had pointed as Aizawa was still unconscious down by the Plaza. The man created a tentacle out of water and sent it hurtling towards the unconscious teacher, wrapping itself around his body as he pulled him towards the giant so fast that the three villains couldn't react in time. The man covered Aizawa in water as he attempted to heal him the same way as both elbows were snapped back into place. But he had to frown as water surrounding Aizawa's face was not doing much. He handed the unconscious teacher to Midoriya and Tsuyu as he made a path for them out of water to the entrance. "I did what I could but there were some injuries I couldn't heal. He needs a hospital fast. I can see some of your friends over there by the entrance. Head back to them. I'll deal with those monsters." The man stopped for a moment, possibly spotting something in the distance as he created another tentacle and sent it flying towards the mountain range.

Yaoyorozu's POV

Just her luck that Kaminari was captured by one of the villains who was hiding the whole time. She and Jirou had to stop since if they took one wrong move, Kaminari would be a goner. She cursed herself for not realizing it earlier as the villain possessed an electric quirk which explains why the security systems as well as their phones weren't working. Jirou tried to distract him but unfortunately the villain saw right through her bluff.

All of a sudden a water tentacle appeared out of nowhere and grabbed the villain and squeezed him hard enough that he dropped Kaminari. Once Kaminari was dropped, the tentacle, with the villain in its possession, retracted itself out of the mountain range. Thanking whatever gods allowed this to happen, the two ladies rushed to Kaminari and dragged him back as they stood readying themselves.

Midoriya's POV

Midoriya stares at the man and is completely taken aback by how much control he had over water. Momentarily forgetting about Aizawa he starts to warn him. "Sir you have to know something about those two, the man with hands has a quirk which allows him to decay anything he touches, and that Nomu is super strong." "Thanks for the heads up now go!" The man responds as he retracts the tentacle, carrying a villain wearing a helmet and green vest.

Midoriya, Tsuyu, and Mineta carried their teacher as they walked back to the entrance. However Midoriya looked back and watched on in horror as the villain charged his hand with electricity and grabbed the tentacle, sending a current towards the massive giant. But that didn't faze the man as he created a second tentacle which he sent to grab Shigaraki. The current had transferred itself towards that tentacle grabbing Shigaraki who struggled to get free. However before it reached him the Nomu grabbed it and was immediately shocked with enough electricity seemingly paralyzing it.

Percy's POV

'Alright' Percy thought to himself. 'I have a small window so I have to make it count. The kids are heading towards the entrance. Now to make sure that Electro wannabe is out' Percy then lifted the man as high as he could and slammed him onto the ground, knocking him out. Once that was done, he sent himself flying towards the handy man and as the man was about to grab him, Percy fainted a punch to the face and followed it up with a punch to the gut, knocking the wind out of him.

Once on the ground he covered himself in a water barrier as he kept charging towards him before trying to punch him again. Suddenly out of his peripheral vision he noticed a small warp to his side with one of the handy man's hands attempting to grab him. To the surprise of everyone watching he grabbed it just before it grabbed his neck as he put his back towards the hand and, with a move he learned from Annabeth, he judo threw him onto the ground hard knocking the hand covering his face.

Tomura Shigaraki POV

Shigaraki layed on the ground in pain while staring at the man above him with horror. How was he able to react like that? He thinks to himself. He was sure that Kurogiri created a warp outside his field of vision. For him to stop with his attack and adjust himself accordingly meant his peripheral vision was larger than normal. The man stared at Shigaraki while holding his right wrist. Kurogiri attempts to create a warp but is captured by a large watery fist and is slammed hard onto the ground, the man still looking at Shigaraki as that happened.

"Now then, you're going to tell me exactly why you were trying to kill a bunch of kids on a field trip with their teachers. And if I don't like the answer, I'll break every single bone in your hand starting with your fingers." The man threatened. Shigaraki attempted to grab his leg with his left hand only for it to get stepped on hard. "That cost you a pinky." The man said as he grabbed his right pinky and bent it backwards forcing Shigaraki to cry out in pain as the digit was at an awkward angle.

Hearing his master cry out in pain, Nomu shook itself and ran to his aid. The man, somehow realizing his pet was on the move, let go of Shigaraki's hand and jumped out of the way of a crushing fist. Shigaraki stood up grabbing his right hand and yelled out in anger "NOMU! KILL THAT BRAT AND BRING ME HIS HEAD!"

Percy's POV

'Damn that brain monster is fast. Not only that but he may be stronger than Tyson' Percy thought to himself as he studied the impact the 'Nomu' left. Percy then noticed the fountain next to him and summoned the water in it lifting it up as he molded it into multiple fists and sent them straight at the monster. However, the creature took all the blows without hesitation as it closed in on him delivering a powerful punch to the gut, taking the air out of his lungs as he rocketed towards the water before skidding to a halt just at the edge. 'Ow! Ow! Ow! Damn it that hurt. Thanks a ton Achilles' he thought to himself as he stood his ground.

"That the best you got, bird brain? My grandma could hit harder than that and she's asleep." Percy taunted the monster but it seemed immune to it. The creep laughed "I must say I never expected anyone outside of All Might to stand up to Nomu and take its blows but here you are. But if you think your little taunts will distract him, you are sorely mistaken, epic boss" he said.

Percy, a little confused by the terminology, waited for the big man to rush him as he slowly willed the water to form a maelstrom behind him. As the monster got closer and closer he sped it up and stepped out of the monster's way before pushing it as hard as he could into the swirling waters. As the monster flailed around, Percy dove into the water and willed the water to grab its hands before punching the thing in the chest and back over and over again and again with the added strength boost he normally got. It was there that he noticed something. The monster was taking his blows and yet not much impact was made. Thinking quickly, he formed a large sword out of the water and cut one of its arms off before sending it to the bottom of the lake. He then swam back up and jumped onto the surface a bit exhausted after the effort he had to put in.

Midoriya's POV

As the three heroes in training got to the entrance, they were greeted by a horde of their classmates hugging them. Midoriya blushed as Uraraka hugged him while Shoji grabbed the injured Aizawa over his back.

Mina Ashido, the pink skinned girl with horns on her head, was crying in relief that her friends were alright, so much so that Tsuyu had to hug her just to reassure her. Sero and Sato held Thirteen up as they waited. But someone was missing. Midoriya asked, "Where's Iida?" referring to the spectacled class rep. Uraraka answered "he was able to get out and was heading to the school as we speak ''. Shoji then let them know that the rest are still in the USJ but so far everyone is alright.

Midoriya let out a sigh of relief as he went back and studied the Plaza. The warp villain and Shigaraki were standing across from their savior. Something felt wrong though to Midoriya. He couldn't understand it but one look at the hero was enough. He was exhausted. He was breathing heavily as he stared the two down. Midoriya just couldn't let this happen. He found himself heading back to the Plaza with his classmates shouting at him to come back. As he ran, the water behind the hero began to bubble as the Nomu returned. He was too far to do anything but he tried anyway. He activated One For All and focused on his legs as he rocketed himself towards the water grabbing the hero just before Nomu could grab him.

He laid on his back next to the black haired man and checked his legs. Thankfully it seemed his legs were fine. He took a look at the man who looked back at him, not with anger but a knowing smile. "Just couldn't stay away could ya" the man jokes, prompting a smile from Midoriya before he stood up. "What's your name kid?" the man asked. A humble Midoriya responded "Izuku Midoriya sir." The man laughed as he said "Sir! I'm nowhere near that age yet. Alright Izuku Midoriya, the name's Percy Jackson. How about you and I team up against these punks?" the man now named Percy said as he stood up and gave Midoriya his hand. Midoriya looked up and smiled as he nodded as he grabbed the offered hand, letting Percy lift him up.

They took their stances against the three enemies. "That thing somehow can take multiple hits without staggering and also can regenerate pretty fast as well" Percy commented. "Correct epic boss. Nomu here has two quirks. Shock absorption and Regeneration. He basically is the equivalent of a sandbag. Not even All Might stands a chance. And here you are teaming up with a brat in training. Nomu, kill them both!" Shigaraki ordered.

All of a sudden a massive boom was heard as the doors went flying towards the Plaza. Midoriya and the man look up as they notice a large muscular man wearing a white shirt while holding his yellow jacket in his right hand. The man has an angry look on his face as he tears off his tie. He then speaks with clear frustration in his voice "Fear not students. Because I am here"

Percy donned a taunting smile at the three "Well look at that. You pissed him off. Im gonna enjoy this" he said as he took one look at All Might. Midoriya however was horrified 'He's here! And he's not smiling

Wooh nelly. Another chapter completed. Now if you're wondering why Percy would threaten to break Shigaraki's hand, it's because of how terrified the children were. He doesn't know them but for an adult to go after children the way the LOV had, it pissed off the teachers. Now put Percy in there who had just been transported from a world where they were fighting monsters and demigods to a world where kids are being attacked.

Next Time: All Might arrives in time and is ready to take on Nomu. However as Shigaraki taunts All Might, Percy gets livid and all of a sudden his powers flare up as he and All Might take down Nomu.