Disclaimer: I do not own My Hero Academia/Boku No Hero Academia, or any other property in this work that I did not make myself.

Hizashi Yamada vs. the zombie apocalypse

Chapter three: He's more dangerous towards zombies then they are towards him

Cementoss used his quirk to lift Hizashi up to the roof of the Heights alliance building, where Hizashi would enter to go in and kill the zombified class 1-A students. Which was sadly most of them, as only Kirishima out of class 1-A wasn't turned. Hizashi, wearing his full suit of Mjolnir Powered Assault Armor, and carrying his Type-1 Energy Sword and his MA5C Assault Rifle, stormed his way into Heights Alliance, closing the door on the roof behind him.

After closing that door and turning around to begin his zombie hunt, the first zombified class 1-A student he spotted was zombie Sato, who hadn't noticed him yet. Taking aim, Hizashi said more to himself, "You were a lot more chill when you preferred eating cake over human flesh." One blast of bullets from his MA5C Assault Rifle later, and Hizashi had taken down one out of nineteen zombie 1-A students.

However, Hizashi's use of the gun did alert some nearby zombies to his presence, mainly zombie Mina and zombie Uraraka, the latter chewing on the remains of what looked like the back of some poor boy's pants. Charging forward with his MA5C Assault Rifle in his left hand while wielding his Type-1 Energy Sword in his right, Hizashi shot down zombie Mina, even scoring a headshot on her, while cutting off zombie Uraraka's head with the sword.

After kicking down all the doors in the hallway he was in and confirming that there were no more zombies on that floor, Hizashi turned his attention to the stairs. His helmet masked the look of grim resolve on his face. "...Time to kill some corpses," Hizashi said as he charged down the stairs.

...

Hizashi jumped up after killing zombie Todoroki, then did some flips through the air before he landed on slash kicked down zombie Bakugo before shooting him in the head. "I'm the bane of all undead everywhere!" Hizashi yelled as he ran straight ahead, killing zombie Hagakure (the only zombie girl Hizashi didn't recognize, meaning her invisibility wore off when she was turned) and zombie Ojiro with his Energy Sword as he ran.

Upon reaching the next floor down, Hizashi saw zombie Izuku charge at him, so he whipped up his gun and shot the zombified cinnamon roll in the head, killing him and making him fall over face down, revealing that he had to of been turned because one of the zombies literally took a bite out of his fanny. "...Note to self," Hizashi said aloud, "Never taunt an undead by telling them to eat your ass. As they're undead, they may literally take you up on that taunt."

Hizashi then had to look up as zombie Aoyama and zombie Yaoyorozu came running at him, so he unleashed a spray of bullets, killing both zombies. Kicking all of the doors on that floor down, the armored Hizashi spotted zombie Sero and zombie Kaminari, so he filled the first with bullets and gave the second the worst headache imaginable. All of the zombie on that floor were dead, so he went down to the next floor below.

...

Hizashi ran along, shouting, "WOOHOOHOOHOO!" as he killed zombie Kyoka and zombie Tsuyu by mowing them down with a spray of bullets, which meant all of the zombified girls were put out of their misery. Looking around as he made his way through that floor, Hizashi spotted zombie Tenya come running at him, but thankfully not using his quirk. "Zombies probably don't know about the quirks they had in life!" Hizashi exclaimed.

Taking his Energy Sword, Hizashi shoved the blade into zombie Tenya's open mouth, then used that positioning to cut off the upper half of zombie Tenya's head, killing him. Immediately after killing zombie Tenya, Hizashi saw zombie Koda, so he scored a headshot on him, killing the rocky skinned boy while making Hizashi hope like hell that the zombie plague couldn't be spread via rats or other animals that Koda used to be in synch with.

Reaching the ground floor, Hizashi decapitated zombie Shoji, and turned in time to see zombie Mineta come crawling towards him, his legs broken. Taking aim at zombie Mineta's head, Hizashi said, "Das Vadanya." He then pulled the trigger and shot so many bullets onto zombie Mineta's head, the head blew up. After doing a quick tally in his head, Hizashi said, "Okay, since Kirishima wasn't turned, the only one left ought to be-"

"Present Mic! Over here!" Dark Shadow called out, making Hizashi turn to see Dark Shadow retraining zombie Tokoyami with a full nelson. "The zombie plauge can't turn me since I have no organic material to be tainted!" Dark Shadow said, "But Fumi here was turned!"

"How... how are you still functional despite Tokoyami having turned, Dark Shadow?" Hizashi asked, his helmet masking his surprise.

"I'm a sentient quirk, dumbass!" Dark Shadow said, "Listen, is Fumi here the last zombie?"

"In 1-A, yes," Hizashi confirmed, "Kirishima was never turned since he wasn't even here. However, all of the 1-B students aside from Tetsutetsu who wasn't turned are still zombies that need to be put out of their misery."

Struggling with zombie Tokoyami still, Dark Shadow said, "I can help with killing the 1-B zombies! I just need you to cut off Fumi's head!"

Shrugging, Hizashi nonetheless did as Dark Shadow asked; using his Energy Sword, Hizashi decapitated the zombified Tokoyami, letting his headless corpse hit the floor. Dark Shadow then retreated back within the headless body, but his head soon came up out of where Tokoyami's head previously was. Dark Shadow, now in full control of the body, stood himself back up.

"There we go," Dark Shadow said, "And since the body I'm piloting had turned, those zombies in class 1-B won't even be interested in me." Holding a hand out, Dark Shadow asked, "Can I borrow one of your weapons so I can better help kill the other zombies?"

Handing the Type-1 Energy Sword over, Hizashi said, "You being of no interest to zombies means you can safely run into melee range and do Dungeon Siege style hack and slash on those zombies' sorry undead asses." Turning on a com device, Hizashi said, "Hey guys, the 1-A dorm has been cleared, and Tokoyami's sentient quirk took over Tokoyami's body after Tokoyami died, so now we have another person to help with killing the zombies in the 1-B dorms."

...

A few moments later, the cement surrounding the 1-A dorm building melted away, letting Hizashi and Dark Shadow come walking out, greeted by the others who with Hizashi were in room earlier with the cage holding zombie Kinoko. "Umm... wow," Aizawa said upon seeing Dark Shadow's head coming out of where Tokoyami's head used to be, "I never thought that I'd see something like that ever occur."

"Yeah, quirks are bullshit," Dark Shadow remarked, "But more on that later. For now, we got some zombies in the 1-B dorm building to kill."

"Do you need more weapons?" Hatsume asked, "Because if you're willing to wait for a bit, I can-"

Holding up the Energy Sword, Dark Shadow explained, "I borrowed this from Present Mic, so each of us has a weapon to kill the zombies with. We need to clear the zombies as soon as possible. The longer we wait, the more the world will be at risk of the zombie apocalypse spreading all over like how blood spread over to stain zombie Midoriya's pants after zombie Uraraka took a bite right out of his ass!"

Toshinori, looking equal parts heartbroken and stunned, said, "Umm... wow."

Holding the Type-1 Energy Sword so that it was over his chest with the tip going up from his left shoulder, Dark Shadow said, "Let's roll."

...

Hizashi and Dark Shadow were soon in the 1-B dorm building, having entered through the top via being lifted up to there by a pillar of cement courtesy of Cementoss's quirk. Entering and closing the door behind them, Hizashi and Dark Shadow proceeded to rampage through the zombie infested class 1-B dorm building, killing zombies right and left as if they were having a ball while playing a very gruesome video game.

After running in to decapitate zombie Reiko and zombie Pony, Dark Shadow shouted, "Booya! That's two kills for me!"

"Oh like hell you'll ever catch up to me!" Hizashi shouted, "I killed nineteen zombies before we entered the 1-B dorm building!" After shooting and killing zombie Yosetsu, Hizashi shouted, "I'm going to be the zombie killing champ!"

"Oh how is counting the zombies you killed before I was able to join you any fair?" Dark Shadow said, decapitating zombie Setsuna and slicing a chuck out of the head of zombie Yui, "That would be cheating big time!"

Hizashi shot and killed zombie Monoma, who came running at him. "...Huh, I think you got a point there, Dark Shadow."

Dark Shadow shoved the Type-1 Energy Sword into the mouth of zombie Itsuka, slicing the upper half of her head off. "Of course I got a point!" Dark Shadow declared, doing a spin that cleanly cut off the head of zombie Ibara, "I'm Dark Shadow! Even Nezu seeks me out for advice!"

Hizashi filled zombie Jurota and zombie Kosei with bullets, killing them. "Crap, I need to reload," Hizashi said, "Cover me, Dark Shadow!"

With an amused smirk, Dark Shadow ran towards the zombies that were running towards Hizashi; thanks to piloting a headless turned body, Dark Shadow wasn't on the menu for any of the zombies, letting him get in close without worry. After Dark Shadow was done killing zombie Hiryu, zombie Juzo, and zombie Shihai, Hizashi was done reloading and went back into the fight. After a few more minutes, the last of the 1-B zombies were killed when Hizashi filled zombie Nirengeki's head with a lot of bullets.

"Aha!" Dark Shadow declared at Hizashi, "You only killed nine of the 1-B zombies! I got ten, so that means that I win!"

"There's still zombie Kinoko, who's in the cage being guarded by turret robots Hatsume and the rest of the support course made!" Hizashi said. Holding up his gun, Hizashi went on, "Let me kill her, then we can call this a draw. I won't even try to count the 1-A zombies I killed before you joined me."

"...Fair enough," Dark Shadow replied. Hizashi used his com device to let the outside know that all of the 1-B zombies were dead now, so it was safe for Cementoss to lower the cement surrounding the 1-B dorm building.

After Hizashi and Dark Shadow walked out of the 1-B dorm building, Sekijiro said with a hint of suspicion on his face, "It... it sounded like you two were making a game out of killing the zombies that used to be my students."

Shrugging, Dark Shadow said, "Look, Vlad King. Present Mic and I didn't enjoy having to kill the zombies that used to be students in your class. But since we had to do it, well we figured that we might as well enjoy it."

"Now all that's left is to kill zombie Kinoko," Hizashi said, "And this undead nightmare can finally be over once and for all."

"You know, this may sound morbid of me," Aizawa began, "But I confess a curiosity as to how the whole 'raise Kinoko as a zombie' thing even worked."

Pointing at his friend, Hizashi said, "We can actually find that out."

...

Back in the room where the cage that held zombie Kinoko was being kept in, everyone who was in on what was going on had gathered again. "Yeesh," Dark Shadow said as he, along with Kirishima and Tetsutetsu, all looked at zombie Kinoko, "Hard to believe that a sweet little girl like her ended up as patient zero of the zombie apocalypse."

"I find it hard to believe that you're now piloting what used to be Tokoyami's body," Kirishima said, "Seriously. How does that even work?"

As those boys were talking, the teachers looked on at Hizashi as he was talking on the phone with someone. "No you listen, Luci!" Hizashi said, "Who was it that got all of that chicken for you? Yeah, you're talking to him! You owe me, you ungrateful prick!"

As the other teachers looked on, Toshinori whispered to Aizawa, "Who... who is he talking to?"

"He told me he was calling someone who could help explain why Kinoko was raised as a zombie," Aizawa said, "But since he identified the person as Lucy and got into an argument with them right away, it seems more like he's arguing on the phone with his girlfriend."

Over to where Hizashi was talking on the phone, he said, "Good, we'll be waiting at my location. See you shortly." Ending the call, Hizashi said, "Well, Luci is coming."

"Why is your girlfriend Lucy coming?" Sekijiro asked, "What does she know about how Kinoko was raised as a zombie?"

Giving Sekijiro a confused look, Hizashi said, "Luci isn't my girlfriend. Luci ain't even a girl, he's a dude, as his Luci uses the L-u-c-i spelling rather than the L-u-c-y spelling. Also Luci is short for his actual first name."

All of the adults, as well as Kirishima, Tetsutetsu, and Dark Shadow, looked at Hizashi with a mix of looks. "...Umm..." Aizawa began, "What is Luci short fo-"

Aizawa was cut off when a large circle of fire with the middle filled by an upside down pentagram of fire appeared in the room everyone was in. Stepping out of the circle and pentagram of fire was someone who greatly resembled Izuku, except he wore a red long-sleeved dress shirt under a black dress vest, black dress pants held up with a belt, shiny black dress shoes, and he had two little pointed horns growing out of his head.

Opening his eyes, the person resembling Izuku showed that the sclera and pupil of his eyes were black but the irises were red. Everyone in the room aside from Hizashi, and Dark Shadow to a lesser extent, were wholly unsettled by the very presence of this Izuku lookalike. Holding up his hands in a gesture to try to put everyone at ease, the Izuku lookalike said, "Relax, I'm only here to shed some light on the mystery surrounding the zombies that has you all confused."

"Who... who are you?" Hound Dog asked.

The Izuku lookalike merely smiled in dark self-amusement. "The name's Lucifer Morningstar," said the Izuku lookalike as he gave his name and bowed, "Also known as Luci for short." Standing up straight, the now identified Luci said, "But you all might better know me by my name of Satan."

END, CHAPTER THREE

Author's notes;

After recruiting Dark Shadow upon killing all of the 1-A zombies, then using him to help with killing all of the 1-B zombies, Hizashi has to call up someone to help explain the zombie phenomenon to the others. And the person that Hizashi calls up turns out to be the devil, who for reasons that will be explained in the next chapter decided to take the form of Izuku. Speaking of the next chapter, it'll most likely wrap this story up; hey, it wasn't going to be that long anyway.