The Guardian

Guardian vs NOMU

Izuku right away sees the NOMU charging right at him...Swinging his Kanobo at him...he leans back to dodge the attack and he rolls back...throwing the Chakrams it hits the side of the NOMUs face...but he sees the cuts regenerated very quickly...
Izuku: 'regeneration...can't use the Kanobo...it didn't budge...have to cut deeper' as he waits for the NOMU to start striking again...he flings his chain and starts spinning it as he swings it the end of it slashes at the NOMU...causing it to squeal 
Izuku: 'but it's not immune to pain" and he throws another chakram and calls it back...as the first one cuts through and the one before comes right back hitting its back...trying to grab the chakrams Izuku runs forward and he slides betweens the NOMUs legs and he does an overhead swing and strikes its back right down in the center....but it ended badly as he was grabbed and it throws him...
Izuku: "GAH!!!" 
Ochako :"NO!" as they were about to go in for help...Aizawa stops him 
Aizawa: "Don't..." 
Jirou: "He needs help!" 
Aizawa: "He has this...I'm sure of it" knowing their teacher...he doesn't really seem to rely or have any faith in anyone...but...he does show his respect for Izuku...and that is enough for them to know...he can hold it off 
Izuku then burst right out of the debris...coming in with the chain he swings it overhead to see the NOMU grab it now...smirking this is what he wanted...as it pulls him in he then gets launched up with it...as he was getting closer he lets go off the chain and he strikes the Masakari overhead...right on the hand...cutting it in half...hearing it squeal Izuku then recovers by planting a chakram into the ground and it slows his speed to a halt...
Izuku: 'now' and he runs right up from behind as it was too focused on its hand...he then slides underneath it and once more jams the pommel of the Masakari into the side of it's knee causing it to topple over...once that happened he then slammed it into the side of it's neck 
Izuku: "Come on!" trying to lodge it in deeper..then he hears the leader screaming 
"DONT LET THIS NPC KILL YOU NOMU...COUNTER!!" but it tried to get up as Izuku now repositioned it to stab into the back of it's neck...trying to cut it right through he kicks the handle trying really hard...but it wasn't enough...now the NOMU managed to get a grip on his arm...
Izuku: "no" as he tried to rip it out...by then the NOMU throws him off to the side...Thirteen was knocked out...the students could only watch in terror...hoping that this would be over...Aizawa injured from that damn thing as well...but he could only try his best in seeing if this beasts quirk could be deleted

But thankfully  
"FEAR NOT!!!" which grabbed the others attention....and the remaining villains also looked over...as the door now burst open...
"I AM HERE!!!" seeing not just All Might...but along with other heroes...and a very tired lida 
lida: "I...got them" as the NOMU now gets back up 
"I've been waiting for this moment...you...you are the very reason that this whole world is fucked...NOMU...KILL ALL MIGHT!!!" now the NOMU full on sprints towards the symbol of Peace...All Might rushes in to now begin their battle...as Izuku now gets back up he sees Midnight now trying to apprehend the remaining villains that are scurrying around...as Izuku takes this time to try and control his breathing...he felt something in him spark...in his chest...which hurts..
Izuku: "gah" as he clenches it...he kneels to the ground...trying to calm himself down...
Midnight using her whip to wrap it around a villains leg and sweep them down on their back...she tears a piece of fabric off her sleeve and the gas engulfs him...putting him to sleep...while Snipe goes in for a shot towards the leader...
 "AH...FUCKING DICK!!" as he misses the other villain in a suit makes a portal in front of him directing the bullet back...which ends up hitting one of the students..
Mina: "NO! TSU!" as they look over to see the frog student hit in the leg...she clenches it tightly...
Snipe: "Damn it!" 
AM: "YOU SHOULD SURRENDER VILLAIN!!" as he continues to fight the NOMU...Izuku felt his vision blur...
Izuku: "what...is...ha...happening?!" he tries to stand up using his Kanobo...he looks ahead to see All Might having some trouble with the NOMU...
Izuku: "All Might..he's...having trouble...have to...help" slowly making his way forward...the pain in his chest only grew...which was like a heartburn...but ten times worse...he wanted to faint...he wanted to vomit...he wanted to cry out from the immense pain...like someone was lighting his heart on fire...but he presses on...

Ochako rushing over to use her quirk on thirteen was scared...she didn't know it would ever be this terrifying to face villains...but...that wasn't the main issue...she still has the blood on her from Izukus onslaught...how he...he killed them effortlessly...has he done this before?...when...how?...why?...there must've been other options than to just kill them...but at the same time she did hear him give them a warning...a warning to let them go free...without having to lose their lives in the fray...but that's not the issue right now...she looks over to him...to see him collapsed on his knees...clenching his heart tightly...is he having a heart attack?!! 
Ochako: "GUARDIAN!!" as her screams were heard Midnight looks over to him and sees him struggling to stand up...walking forward...
Midnight: "Damn it!" as she was going to draw her attention to him...more villains come out from portals behind them...
Mina: "HELP!!" as the other heroes were occupied now...again...Midnight had to leave him be..
MIdnight: "sorry kid...don't do anything stupid!!" as she mutters to herself...she prays they will make it through this...

Izuku: "damn it...come on....MOVE!!" as he coughs...he sees All MIght being launched back...he noticed he started to steam a bit...
Izuku: "what?!" he's....he's having trouble...hearing the  villain laughing...rambling about how he's basically screwed...he ignores it and he felt it...he felt the pain in his heart turn into something...hateful...he felt his anger grew...as he sees the NOMU beating down on him...he couldn't help...but see himself....in that same situation...when he was living with those fuckers...
those cries for help...the worthless quirkless child that no one will help...even if he's on the brink of death...then he now felt a surge of energy go through him...and he now full on sprints towards the two the leader was amused by this...but didn't think it was going to do anything...boy was he wrong 
AM: "DAMN!!" he was running out of time...as the NOMU was about to punch him...the arm was chopped off hearing it scream 
AM: "Wha!?" 
Izuku: "HYAH!!" using the Kanobo to slam the side of it's head...even with it's quirks it was enough to knock it back a little bit...now Handing the Masakari to All Might..
Izuku: "HURRY UP AND FINISH IT!!" as he keeps the NOMU busy now...fighting it...using the chains...then the chakrams...and then his Kanobo...Izuku ducks from a punch and he swings the Kanobo as hard as he can upward launching it up 
Izuku: "NOW!!!!" screaming with all he has 
AM: "YOUR REIGN IS OVER VILLAIN!!!" now jumpign forward
"WHAT!?!" the leader was surprised at this 
AM: "MONTANA...SHUGOKI SMASH!!!" now swinging the Masakari right across the NOMUs Torso...it soon made it's mark...cutting it completely in half...the immense power behind that swing created a crater underneath them...and the two halfs off the NOMU flies in different directions...
AM: "THE DAY IS SAVED!!!" as the other heroes see the beast killed...All Might turns his attention to Izuku...
Izuku didn't say anything...but gave a thumbs up...and All Might returns the gesture 
Izuku: "hehe...heh...good" and he falls forward...All Might was ready to catch him...but he was beaten
Midnight: "I got you kid..." hearing his fainted breathing 
Izumi: "BROTHER!!!" hearing the other students rushing to them 
"RRRAHH!!...NO FAIR!!..NO FAIR!!!...THIS WASN'T SUPPOSED TO BE A DUEL BOSS BATTLE!!!...I WILL GET YOU I WILL GET YOU!!!!" but before any of the other heroes could get him...he was pulled back into a portal...disappearing from them...traceless...
Izuku: "*wheeze*...m...must...g...get...back....n....Nej" before he completely blacked out from the battle...it has been won