Disclaimer: I don't own Yandere Simulator or Hello Neighbor. Yandere Simulator is owned by YandereDev. Hello Neighbor is owned by Dynamic Pixels.

Azure: Ayano Aishi vs Theodore Peterson is the first matchup to start out these nine chapters, which will be themes which people find scary. Stuff like demons, ghosts, or, more realistically, killers. Yandere-chan and the Neighbor are similar as they're both extremely protective of someone they love, Taro Yamada and Aaron Peterson. Their motives for killing revolve around the people they love. Both grew up as the children of people suspected to be psychopaths, and became dangerous killers who can get away with their crimes. And they both utilize multiple different weapons.

-Line Break-

Bryant: Serial Killers. They're cold, merciless, and insane.

Thea: And they kill just about anyone they want. It's in the name.

Bryant: But there are some who's actions can be a result of one's love.

Thea: That's just creepy.

Bryant: Ayano Aishi, the Emotionless Yandere.

Thea: And Theodore Peterson, the Insane Neighbor.

Bryant: I'm Bryant Reese.

Thea: And I'm Thea Price.

Bryant: And we're here to analyse these two fighters and find out who would win, a WI Battle!

-Line Break-

Bryant: The prestigious high school of Akademi. A school which houses the one and only, Taro Yamada.

Thea: This guy is a harem protagonist. Plain face, in school, nerd, no muscles, has a bunch of girls simping over him. Harem protagonist. He's even got all the stereotypes crushing on him. We got the tsundere, the teacher, the nurse, the sister, the cook, the fake princess, the cultist, the delinquent, the council president. Geez, how many more harem stereotypes are there?

Bryant: Many, many more. But just one more in this game. The Yandere. The Yandere being the infamous Ayano Aishi.

Ayano Aishi:

-Alias: Yan-chan

-An Aries

-Is also a Kuudere

-Trains by playing Hitman

-Obsessed with 'Senpai'

Bryant: Ayano is a young teenage girl, one who grew up without being able to feel emotions. Likely a form of Alexithymia

Thea: I thought her name was Aishi, not Alex.

Bryant: No, Alexithymia is an inability to recognize and respond to emotions. Which describes what Ayano felt decently.

Thea: Ayano is the daughter of a family of yanderes, which sets up some pretty big expectations for her. Her grandmother was a yandere that kidnapped her grandpa before breaking him mentally into loving her and only her! And her mom kidnapped her dad until he promised not to leave her. Seriously, I think we know how Senpai is going to end up.

Bryant: Fortunately, Ayano's father was able to make his mother, Ryoba, promise to never tell Ayano her secrets.

Thea: But she still found ways to teach her kid to get away with murder. Don't you love it when moms are also good teachers?

Abilities/Arsenal:

-Superhuman abilities

-Martial arts

-Keen senses

-Distracting Giggles

-Torture expertise

-Chemistry mastery

-Seduction

-Weapons:

=Knife

=Katana

=Axe

=Baseball Bat

=Boken

=Box Cutter

=Circular Saw

=Crowbar

=Dumbell

=Fire Extinguisher

=Guitar

=Shovel

=Pipe

=Pipe Wrench

=Scissors

=Screwdriver

=Syringe

Thea: Like how Ryoba taught Ayano how to clean blood without any evidence. Just use a bit of peroxide and blood won't appear.

Bryant: During Ayano's high school years, she ran into Taro Yamada and instantly fell in love.

Thea: But being a Yandere, this means that any girl who decides they like Taro is about to get killed.

Bryant: Something that's rather dangerous. Ayano is a skilled killer, with multiple different abilities and weapons.

Thea: Some are basic stuff, like martial arts and superhuman abilities. But she's also got keen senses in the form of her Yandere Vision. She can see just about anything through walls and such, and she can even memorize and isolate specific scents.

Bryant: Her laughs can lure certain people to specific spots, leading them to traps.

Thea: And then there's her… panties.

Bryant: We're… not joking. Ayano has a variety of different panties, which grant different effects.

Thea: Like her Stealthy Black Panties, which increase stealth, or Speedy Sporty Spats, which increase speed.

Bryant: And you like this game, why?

Thea: Shut up.

Bryant: Ayano possesses multiple weapons which she uses in battle. She specializes in adaptability and flexibility. She can use multiple different weapons she finds around the school.

Thea: From axes, to bats, fire extinguishers, pipes, to even stuff like guitars, box cutters, and more!

Bryant: It's worth noting, however, that Ayano can only carry so many weapons at once. Her most iconic set of weapons is her knife, a katana, a syringe, and her phone.

Thea: The classic Yandere gear.

Bryant: Ayano is a clever, cunning killer. She's capable of planning out strategies and deploying them within less than five days.

Thea: But if she gets really emotional, like if she's arrested or if Senpai chooses someone else, she enters her SNAP mode.

Bryant: This is a metaphor of Ayano losing her will to live. She's unable to move, but all of her other abilities are drastically increased. Her goal is only to kill whatever stood in her way, Senpai, and finally herself.

Thea: She's one crazy chick. And she's probably not something that you can avoid forever.

Achievements:

-Fastest runner in the school

-Can defeat teachers and Budo Masuta

-Can move heavy dumpsters

-Can use just about any weapon

-Can kill more than 10 students in just 10 weeks without being caught

-SNAP mode can allow her to snap necks and punch through people

Thea: She's the fastest in the school, which means that no one can escape her. And it doesn't help that she has almost unlimited stamina, which means she can run as long as she wants.

Bryant: Ayano can also pull a filled dumpster. An empty dumpster can weigh up to 3.25 tons.

Thea: She can probably yank around dumpsters that weigh around 5 tons, since these dumpsters are usually filled with trash and heavy bodies.

Bryant: She's also skilled enough to match the likes of Budo Masuta, who's a master martial artist who never lost a fight. She can fight off and kill teachers and police men.

Thea: But when she enters SNAP mode, she can punch people through the chest and snap their necks, even if she can't move all that fast.

Bryant: Ayano is a master of stealth, cunning, and adapting, making her one of the deadliest characters in her universe. In fact, at her best, only a skilled assassin or supernatural yanderes can match her.

Thea: But at her worst, anyone can take her on.

Weaknesses:

-The more she kills, the more insane she becomes

-Has, at most, 10 weeks worth of experience

-Game isn't done

-Is biologically human

-SNAP Mode results in her own death

-Senpai is more important to her than herself

Thea: She can only kill so many people before it starts getting to her head. She gets more and more insane, trading efficiency for brutality. Not a good thing when you're trying not to get caught.

Bryant: It also doesn't help that Ayano has only been killing for at most 10 weeks. She may be skilled and clever, but she's not an expert quite yet.

Thea: And since she's just human, she can get killed by regular human weapons. All you need is a well-placed bullet.

Bryant: If she doesn't kill herself first.

Thea: SNAP means she kills Senpai, and since she can't have him anymore, she just kills herself.

Bryant: Even so, Ayano is undoubtedly an extremely dangerous girl. She will not stop trying to get to her senpai, even at the cost of her own life.

Thea: This is one Yandere that you don't want to mess with. Not that there's any Yandere that you want to mess with.

-Line Break-

Bryant: When moving into a new neighborhood, it's always nice to be able to reach out to your neighbors and quickly establish a friendly relationship with them.

Thea: But if you move into Raven Brooks, Missouri, the last thing you want to do is reach out to Theodore Peterson. Cause this f*cker insane!

Theodore Peterson:

-Age: 50 years old

-Alias: The Neighbor

-Had 666 on his shoes

-Has a limp in his right leg

-Former Theme Park Designer

Bryant: Theodore Peterson was born as the child of popular meteorologists. However, it's worth noting that they have quite a bit of a streak of being crazy.

Thea: Which explains Theodore's mental failures and physical failures.

Bryant: Mr Peterson created multiple amusement parks across the world, but they were quite flawed.

Thea: The first one killed a kid. The next one drowned four kids. The third one tossed a girl into a tree and she died before burning down. Yeah, dunno why they keep hiring this moron.

Bryant: If that wasn't enough, Mr Peterson lost his wife in a car accident, and his son accidently pushed his sister off of the roof.

Thea: Damn. I'd feel sorry for him, if he didn't go completely cuckoo! Well, no, I still feel sorry for him.

Bryant: Completely unhinged, Peterson locked his son in the basement in an attempt to keep him from dying as well.

Thea: This old man is determined to make sure he never loses anyone else ever again. And he's got the gear to make sure no one tries to take the last member of his family away.

Abilities/Arsenal:

-Superhuman abilities

-Keen senses

-Weapons:

=Shovel

=Butchery Knife

=Bear traps

=Glue

=Tomatoes

=Mannequins

=CCTV Cameras

=Buckets of Water

Thea: His signature weapon is his trusty rusty shovel. Perfect for making and burying bodies.

Bryant: When it comes to ranged weapons, he doesn't use ordinary firearms. Rather, he throws bear traps.

Thea: Bear traps are ridiculously dangerous. And useful.

Bryant: What?

Thea: Keep in mind that these things are meant to catch bears. If they snapped on your limb, you won't be going anywhere for a while. They snap down with a pressure worth of about 1,000 pounds or more. If it doesn't break your bone, it'll still weigh you down. Slowing you down long enough for the Neighbor to come up to you and kill ya.

Bryant: He can also use glue to hit people and trap them in place.

Thea: Or Tomatoes, to blind people.

Bryant: The Neighbor, however, is someone who acts like a security guard. His goal is to make sure no one gets in. And if they do get in, he makes sure they can't get out.

Thea: He's got CCTV Cameras and Water Buckets, which gives him the heads-up where his victims are. Meaning it's hard for you to hide. And if he gets his hands on you, he'll turn you into mincemeat with his knife.

Bryant: He also has an army of robotic mannequins which are each strong enough to wrestle with actual humans.

Thea: Robotic mannequins? How about a robotic shark?! This thing is strong enough to kill actual humans!

Bryant: The Neighbor is certainly one dangerous killer.

Achievements:

-Avoided getting caught for a long time

-Can tank fireworks to the face

-Can break through windows and wood

-Can survive a lawnmower to the head

-Faster than most people

Thea: This guy is definitely a tough son of a b*tch.

Bryant: The Neighbor is capable of catching up to most people with little effort. And with his high senses, it's not very likely for someone being able to avoid him.

Thea: Not a good thing. Especially when he buries you alive.

Bryant: He's strong enough to break through doors and windows with little effort, and he can even power through fireworks exploding in his face. Keep in mind, fireworks can reach temperatures up to 1800 degrees Fahrenheit at minimum.

Thea: That's hot enough to cause some serious severe skin burns, and set your clothes on fire! But he just doesn't care.

Bryant: He's also smart enough to be able to avoid capture and being arrested for decades.

Thea: Yeah, but this guy doesn't have too much to work with. He definitely relies more on his big collection of weapons and traps than his skill.

Weaknesses:

-No real fighting skill

-Traps can be worked around or against him

-Can be stunned by regular objects

Bryant: The Neighbor has no real martial arts training, and thus relies on his house and its large assortment of weapons and such.

Thea: That can work for some people, but not if they decide to fight back. And a lot of his weapons can be used against him. This guy gets stunned by just about anything. He can get trapped by his own traps, which leaves him open for someone to just, kill him.

Bryant: Still, Theodore Peterson is a dangerous fellow. If you wish to live, one must stay away from his house.

-Line Break-

Bryant: Alright, the stage is set, time to start this dance.

Thea: Battle ready, set, GO!

-Line Break-

Taro Yamada and Budo Matsuda stood in front of a large house. It looked rather scary. And on top of that, there was even lightning in the background. Taro gulped and adjusted his grip on a katana. Why did he even have one? He doesn't know how to use it!

"Uh, Matsuda? I'm not so sure about this." Taro said to his friend.

"Ah come on Yamada! This is perfect! This house is the perfect house for you to finally learn how to man up!"

"If manning up means going into a random guy's spooky house and getting killed by a ghost, then I'd rather man down." Taro said as he turned away. Budo grabbed Taro by the shoulder and pulled him back.

"Come on, it's not that bad! It's not like there's anything culty. Trust me, I'm friends with Oka and I hang out with her all the time, so I know."

"Club Leader meetings don't count as hanging out." Taro shot back. Budo scoffed as he gave Taro a shove.

"Relax Yamada! If anything happens, just use the radio I gave ya to call me. I'll come charging in with Karate!" Budo said as he punched the air a couple of times. Taro sighed as he looked up at the house before walking up to it.

"This is sooo dumb." he grumbled. He slowly sneaked into the house, his eyes whipping back and forth. Budo grinned as he watched his friend get into the house.

"It's finally time. Yamada is finally starting his journey of being a man. Snff. I'm so proud!" he sniffed as he wiped away tears. So busy he was, he didn't notice a certain ponytailed girl sneaking past him.

Inside, Taro continued to make his way around the house. Based on what Budo said, there was a secret in this house's basement. The challenge was to go down, find what's there, and get out without anything happening. Taro was terrified when he heard that no one came back, but Budo seemed to think that this was the perfect way for him to, 'man up'.

"Man up. What the hell is with him and manning up?" Taro grumbled. He gripped his katana a little more tightly and made his way through the house. The floor creaked, and the inside was lit up with flashes of lightning.

"Man, this place is creepy." Taro grumbled.

"If you don't like it…" a deep voice rumbled. Taro froze, and slowly turned around. Theodore Peterson was breathing heavily, his face red. His shovel was gripped in his hands.

"GET OUT OF MY HOUSE!" the Neighbor roared as he charged towards Taro. The high-schooler screamed in fear and ran, his katana dropped to the ground. The Neighbor chased the high schooler upstairs. On the floor below, footsteps chased them, stopping only to pick up the discarded katana.

"Wait! Wait! I'm sorry! I'll leave!" Taro pleaded as he was cornered. The Neighbor yelled as he charged at Taro. The high-schooler managed to dodge the first shovel swing by throwing himself under it. He scrambled for the door, but recoiled when it slammed open. Ayano Aishi looked at Taro, and her eyes became lit with rage when she saw he was scared. She looked up to see the Neighbor raising the shovel. Ayano quickly drew her katana and knocked the shovel to the side. She made her way forwards as Taro scrambled to run out. The two killers faced each other.

Which killer is deadlier?

Fight!

The two killers charged towards each other and swung their weapons. The two weapons bounced off each other with a loud 'clang' causing both to fall back. Ayano was quick to get on her feet though, and she swung her katana. The Neighbor blocked the swing and slammed into Ayano, shoving her against the wall.

"Get out!" he yelled as he swung his shovel. Ayano ducked under the swing as the shovel embedded itself into the wall. The Yandere tried to swing her katana, only for the Neighbor to catch the swing by grabbing her arm. He reared his head back and slammed his head against Ayano's. She yelped in pain and put a hand on her forehead where she was hit. Peterson took this chance to swing his shovel and slam it into her stomach. Ayano coughed in pain as she had the wind knocked out of her. Peterson raised his shovel and tried to hit her again, only for Ayano to throw herself to the side. Her katana sliced through the air and managed to slash Peterson's leg, causing him to fall to a knee.

"I will not let you hurt my Senpai!" Ayano said as she stabbed Peterson through the shoulder. He yelled before grabbing the katana and using it to pull Ayano off-balance. She grunted as she fell onto the ground. The Neighbor tried to slam the edge of the shovel into Yandere-chan's neck, but she rolled away. Her foot swung around and slammed into the Neighbor's ankle and knocked him over. The two got to their feet and Theodore quickly charged again. Ayano tried to block the swing, but the katana was snapped in half from Peterson's shovel.

Caught off-guard, Ayano was open for another strike to her stomach, knocking her against the wall. The teenage girl looked up and gasped before rolling to the side. The Neighbor's shovel slammed into the ground where she was. Ayano's foot lashed out and kicked Peterson's ankle again. She rolled away as the Neighbor tried to get up. When she got to her feet, Peterson slammed a shoulder into her chest, sending her through the door. Ayano scrambled to her feet and ducked under a shovel swing. She blocked the next swing and slashed up with a knife she pulled out. The Neighbor yelled as he felt his shoulder burn from the cut. Ayano knocked him back with a head butt before stabbing his chest.

"Die!" the Neighbor yelled as he shoved Ayano away and pulled out the knife. He raised his shovel, but Ayano spun and kicked it out of his hands. The shovel fell down some nearby stairs, and Ayano took this opportunity to shove Neighbor back and punch him across his face. He snarled and pulled out his butcher's knife to try to slash Ayano. The girl jumped into another room and quickly side-stepped a bear trap.

"You better get out of my house!" Peterson screamed as he stomped in, both knives in hand. Ayano grunted as she dodged several slashes before grabbing a chair and using it as a shield. She slammed the chair against Peterson, but the old wood shattered. The Neighbor swung wildly, and Ayano gritted her teeth when she felt herself get cut by a couple lucky swings. She continued to back through the room, when she stepped on something. She glanced down quickly before ducking under a swing and grabbing the crowbar. She knocked a swing away and smacked Peterson across the face, earning a grunt.

The Neighbor continued to try to slash Ayano, only for the girl to knock away the slashes and counter with her own swings. He grunted as Ayano continued to smack him with the crowbar repeatedly, knocking the knives out of his hand. He stepped and roared in pain as the bear trap from before snapped close on his ankle. Luckily for him, it was a smaller, weaker one, but it still stopped him for Ayano to go ham on him. He was knocked around repeatedly by powerful swings of the crowbar before being kicked out the room. He stumbled backwards before breaking through the weak railing next to the stairs and falling down with a yell. Ayano ran down the stairs with her knife and the crowbar.

She reached downstairs, only to be rammed into by a mannequin. Several more swarmed her, trying to grab her and force her down. Ayano grunted and growled as she fought the mannequins back. She used the crowbar to yank their feet from under them and smashed their heads off with powerful swings. She swung and kicked and punched until the mannequins were destroyed. The bear trap that was on Peterson's ankle flew through the air and clamped down on Ayano's arm, making her yell in pain. She jammed the end of the crowbar and broke the lock, but the Neighbor swung his shovel with a roar and slammed it into her stomach. Ayano coughed as she was knocked off her feet and into the wall. The crowbar clattered on the ground.

'N-no…' she thought as Peterson slammed his shovel against the side of her head. Blood spilled down the side of it as the room spun. The Neighbor continued to smash his shovel into her side, earning a crack.

'I… I have to protect Senpai…' something snapped inside of her, and her pupils dilated.

The Neighbor rushed up to Ayano, swinging his shovel. Ayano dodged to the side before grabbing him by the throat. Theodore grunted as he was lifted up and slammed against the wall. The shovel dropped to the ground as Theodore was slammed into multiple times, cracking the wall. Ayano slammed him down before pulling out her knife. The Neighbor tried to throw her off, but the knife stabbed into his chest repeatedly. He gurgled as he fought to get away. Ayano pulled him up by the collar of his shirt. She raised a hand and made a fist before punching Neighbor in his wounded chest. Theodore's eyes widened as his back exploded in blood and bone, Ayano's blood soaked fist following the gore. The Yandere pulled her fist out, leaving a large hole. Theodore gasped for breath as he staggered away as Ayano let him go.

"Get away… GET AWAY!" Theodore screamed as he fell near a bear trap. He grabbed the metal trap and hurled it at Ayano. The Yandere used her fingers to hook against one side . The Neighbor could only watch helplessly as the trap soared towards him before snapping over his face. The teeth dug into its owner's face, snapping it off with a wet crunch.

Ayano stared at the corpse with a maniacal smile, her head twitching slightly. A gasp caught her attention. Senpai stared at her with a hand to his mouth, terrified. He backed away, but found himself trapped between Ayano and a wall. He stared in fear as the blood-soaked Yandere came closer, closer… closer… closer…

KO!

Thea: Wasn't she there to save him?

Bryant: Peterson put up a good fight, but Ayano had him outmatched.

Thea: Both are pretty fast runners, but since we don't have any concrete speed feats, we can't really tell who was faster. But we know that Ayano is stronger, since she can move around 5 ton dumpsters and punch straight through people. There was no way that the Neighbor could match her strength in a straight fight.

Bryant: Nor could he match her skill. The Neighbor relies on environmental advantages and preset traps over martial arts. Against someone fighting back, he would have to rely on strength alone. Which isn't good as not only is Ayano stronger, but she had actual martial arts training which allowed her to defeat similar opponents, like teachers.

Thea: Not to mention the weapons. Peterson's were a little more unorthodox, but unorthodox doesn't always mean lethal. Ayano could use a bigger, better variety of weapons, which means Peterson didn't have a lot of options he could use to win.

Bryant: The Neighbor was forced to rely on his traps and his house in order to get the upper hand, but Ayano's greater strength, skill, and versatility meant that he was only delaying the inevitable.

Thea: The Neighbor just had Aya-no chance. Which means the winner of this WI Battle is Ayano Aishi!

So that was the chapter. Ima be honest, this chapter was mostly just filler. I wasn't really interested in writing about Ayano and the Neighbor. I found this matchup to be a little boring to write. But hopefully, it was good enough to be a decent chapter. As per the usual, leave a review! Azure out!

ALT. ENDING

(Neighbor's Win)

The two serial killers grappled with each other, trying to overpower their opponents. Neighbor yelled as he turned and threw Yandere away. He turned and grabbed his shovel. Ayano tried to get up, but the shovel came down and hit her back. The impact slammed her down, but the Neighbor didn't stop. He raised his shovel and slammed it onto Yandere again. He continued to beat Ayano, causing the wooden floor to crack under the repeated impacts. Cracks began to come from her body as well.

"Stop… please…" Ayano gasped in pain. The Neighbor grabbed her by the leg and began dragging her away. Ayano clawed at the wooden floor, trying to get away. Neighbor dragged her towards a nearby bear trap and grabbed the back of her uniform. He lifted her up above his head.

"You should've gotten out OF MY HOUSE!" he screamed before throwing her onto the large bear trap. The metal teeth snapped close, and Ayano could only scream before the trap split her body in three, splattering blood on the floor. The Neighbor raised his shovel again before slamming the blade into the Yandere's remains, stabbing them over and over again as blood stained his house's floors.

NEXT TIME!

"I will seal away Soul Edge for all eternity and atone for my sins. This I swear!"

"I will put an end to this."

SIEGFRIED SCHTAUFFEN!

VS

JIN KAZAMA!