She's an assassin becoming a hero yandere bnha x oc

Information

That's what she looks like)
Name-Naomi
Last Name-Zoldyck
Age-16
-she is the third oldest of the Zoldyck siblings
Occupation-student/forced assassin/older sister
Family-silva[father]>kikyo[mother]>Illumi[oldest brother]>milluki[second oldest brother]>killua[youngest brother]>alluka[younger sister]>kalluto[second youngest brother
Relationships with her family
Illumi-she cares about him deeply and wishes the best for him and hopes he stays safe
Milluki-she cares about him just like illumi she's there for him when he needs someone to tell him he's amazing no matter what he does
Killua-she would do anything to protect him even if it caused her life
Alluka-she loves her alot and will do anything to protect her
Kalluto-she would be there for him no matter what and cheer him on
Silva-she loves her father even though he did some bad things to her and her siblings
Kikyo-she loves her mother and respects her but she doesn't like how she was forcing her and killua to become assassin's
Zeno-she loves her grandfather
Zigg-she only remembers seeing him when she was four years old he was always there for Naomi when the training or punishments were bad so there pretty close
Maha-they are very close with each other she remembers seeing him when she was 7 years old and that's all she remembers cause she hasn't seen him in so long
[they all care deeply about naomi]
Weapons-guns knife's sharp string cards[like hisoka's]
Past-she was trained just like killua so she's kinda like illumi but she only shows her true emotions to the people she loves she's also cold towards everyone else and instead of getting a nen she got not just one but a few quirks[i made her a Zoldyck so of course she's going to be overpowered]
Number of people she killed when she was a certain age
12 years old-5
13 years old-16
14 years old-13
15 years old-20
16 years old-28
[she was forced like killua]
Quirks
Name-nullification
This quirk grants the user immunity against quirks effectively making them a living tank since the user is immune to quirks they would also be immune to erasure so aizawa wouldn't be able to make them vulnerable the user would be immune to dabi/endavor/shoto's flames as the flames are a result of a quirk but wouldn't be immune to a flamethrower they also wouldn't be immune to toga's transformation quirk as that is a quirk that affects her
Quirk by blue4029[i'm giving the person credit]
Name-pointed metal manipulation[it should be obvious who's training her for this one and if it isn't it's illumi]
Quirk type-emitter
Quirk description-the user can manipulate any kind of metal which has pointed features
Abilities
-can manipulate needles bolts metal sheets metal coils ect
-can manipulate injections as it also has syringe needles can use it to poison or paralyze the target it can be even used to to inject viruses or bacteria inti targets system
-the metal objects can be used as projectiles which are highly effective in long range combat
-the user can also rotate the metal screws to loosen up a structure
Drawbacks
-this quirk only work on metals with pointed edges so it won't work on metal spheres or chain like objects
-using quirk drains stamina at exhaustion level usage the user will be knocked out[but with being a zoldyck she doesn't get knocked out]
-using the quirk uses hemoglobin in users body to much can cause iron deficiency needs to eat iron based food a lot[again it doesn't affect her because of the training she had to go through but she does have to eat something with iron here and there]
Quirk by-vinodbhosale
Name-half power touch
Quirk type-emitter
Quirk description-the quirk user can touch someone and their power reduces in half
abilities
-you touch someone and they lose half their power
-while the power of their target is reduced by the half they gain the reduction of the power of their target good if they cut power of a strength based hero
- they retain 25% power they have stolen as reserve which keep them strong enough even after their opponent gain full strength
How it works
-it will reduce in half like if izuku can handle 100% of his quirk then after the touch the power izuku can use is only 50%
-explosions caused by bakugou will be half of the power
-ochako can use her gravity quirk for short time
-recovery girl cannot heal anyone faster
-people like kyoka or mezo have their effective range of quirk is reduced
-it can also be used to subdue fumikage by reducing power of the shadow by half
-the process of disintegration from tomura's quirk will be reduced by half amount 
Drawbacks
-Certain quirks that affects others like erasure bloodcurdle etc aren't affected by it since it doesn't change the target or have any effect on their power
-The effect stays for two minutes
-Since their body is not accustomed to increase in power stealing power from Izuku is a very bad idea(yes it would do lot of damage she just probably wouldn't feel it)
-They will feel intense pain if they try to use their power on mutant quirk user since they don't have mutated part they cannot utilize their power and thus it will cause a wound through which accumulated power will escape it may cause damage to internal organs(she knew the dangers so she tried to not use that part of her quirk but her parents had different plans)
Name-deck of cards
Type-emitter
Range-n/a
Description-the user will have the ability to creat cards by a swift snap these cards can be sharpened to be used as a weapon or enlarged to be used as a shield etc the user can also manipulate a deck of cards for it to become a "card monster" which can spit out sharp needles to paralyze the enemy
Backdraws-the cards are limited and the user can only create a maximum of 100 cards per minute if the user runs out they'll lose the ability to do anything (expect she can get more from hisoka)
Special move-card dance
With this move the user has the ability to manipulate their cards into a ritual like dance it surrounds the opposing enemy and can cause confusion to anyone who gets trapped in it as well as slow their speed and agility
Possible hero names
.joker
.blackjack
.spade
.jester
.clover
Name-demon knife
Quirk description-the user will have a red knife that'll burn it it's inside of something like meat or a body
Drawbacks-if anyone touches the blade it'll cause a 3rd-degree burn and blisters and the blade needs to be in a cover the user can even summon it from the ground and walls
Extra-it'll feel like it came from the pits of hell
Quirk by-djcyri808
Quirk name-venom
Type-emitter
Description-the user can produce multiple different kinds of poison that can paralyze,cripple,cause pain,or kill a person
Strengths
*great for close and mid range combat since the user can shoot out poison or cover themselves in poison
*can be used to capture people with ease with tranquilizer posin
*can be formed into balls shields or monsters
*for an assassin or mercenary this is excellent for killing since only a drop of the strongest poison will kill a person
Weaknesses
*long range attacks will be very effective and make all of the users attack useless
*electricity is easily conducted by lightning so a person like kaminari will take out the user very quickly(not her though)
*antidotes or pro with poison immunity quirks will nullify the quirk
Special attack:Black Death
The user makes a large demon made of black poison that would kill anybody instantly after one touch with no hope of surviving afterwards
Quirk by djcyri808
Quirk name-creepypasta
Type-emitter
Description-user can summon whatever creepypasta they wish the summoned ones will obey each command with no hesitation the only time they will disobey is to protect their summoner
Drawbacks-only able to summon 10 at a time
Quirk by-big-chungu
Quirk name-energy absorption
Type-emitter
Ability-the user can absorb light and heat energy and manipulate it
-the user can make shapes or weapons with this quirk
-the holder of the quirk is able to absorb energy and use it to use raw energy
Drawbacks-because the holders body naturally absorbs light they cannot stay in dark places for to long unless asleep
-no energy means no quirk using simple as that(not for her though)
-because the quirk is so powerful the users body will sometimes start to burn if to much energy is absorbed
-absorbing energy makes the quirk stronger yes but due to how much energy is getting stored within the body to use the quirk the users body becomes more tired and weak while the quirk gets stronger
Special ability/attack:energized body
-when the users body goes through enough pain damage or just becomes very weak their body automatically absorbs whatever energy there is around (15m radius) causing the users outline to glow red while their hands are covered with raw energy the more hits they get the stronger and faster the ability becomes this lasts about ten minutes
-after the ability the users body will start to internally bleed from radiation poisoning and causes cracks to form under the eyes the body will need a lot of rest and healing 48 hours of rest will be needed also the user will feel a burning like feeling from the inside
Other
-raw form energy is usually blue but depending on how much energy is absorbed it'll change colors the weakest colors is blue the middle is purple and the strongest color is red
-the users hair naturally absorbs solar aka light so their hair looks like the northern lights usually (she can choose if she wants her hair to look like that)
-the holder can actually absorb more than light and heat energy they can also absorb chemical atomic/nuclear mechanical gravitational sound and electrical energy but the user has to touch or be near the energy before absorbing it unlike the light and heat energy where the body just naturally absorbs it
Quirk name-switcher wing
Type-emitter
Description-user grows large wings that they can switch what type it is
Pros
-user gets benefits of all wing types
-user can carry people when flying
-user heals but it depends on the wing
-user known how to use wing instantly
-user can combine wings
Cons
-transition between wings is painful
-user must rest for longer for the stronger wings
-users limits very (not as much for her)
Weakness:wing weakness
The effect of this is amplified for the user
Quirk name-color gas
Type-emitter
Description-able to create large amounts of poisonous gas that can vary on effects depending on the color of the gas it can have different effects on the opponent
strengths
-red is flammable gas that can be ignited and blow up
-white can cause temporary blindness
-green can weaken a person's physical abilities and after to much exposure and bring them to there knees
-blue enhances the quirks of whoever inhales it the more gas inhaled will determine their boost in their strength
-purple will slowly kill any creature who inhaled the gas causing major couching and lung damage at first but after awhile it can cause total organ shutdown
Weaknesses
-she isn't immune to the effects of his own gases and can be just as hurt(that's why she has the gas mask)
-red is hard to control and could heavily damage him and the environment
Special attack one-black fog
After combining all the gases together the user can create a black fog that can kill the user and any lucky people who breath in the deadly gas with only one breath
Special attack two-rainbow fog
After combining all the gasses with the user can also decide to create a healing fog that will almost instantly heal wounds while taking an enormous amount of stamina to do(it doesn't take that much stamina from her)
Quirk by-titantale22
Quirk name-fireworks
Type-emitter
Description-the user is able to shoot fireworks out of their hands they can also shoot fireworks out of their eyes ears fingers feet legs mouth and nose
Drawbacks-sneezing fireworks(it rarely happens)
Quirk name-bloodlust
Description-when bloodlust is activated the user releases large amounts of overwhelming energy this energy causes the opponent to be in a weakened state for a conditioned time considering the quirks development blood loss can also be used to bring out any of the users evil tendencies such as a killing intent
Special moves
Deaths door-When the user lets out energy waves that no one can't ignore Deaths door is activated it causes the users opponent to feel immense fear as if they are near death
Deadly release-The user must released their bloodlust Or there will be consequences when the user has not released their blood lust in over Three weeks your body will automatically release inhuman amounts of dangerous energy this energy might cause the user to go into a state of sleep in which they kill anything that is living near them(that's how Naomi's parents forced her to kill)
Drawbacks
Prolonged sleep-sleep is often recognized as a relative of death so the more bloodlust that the user emits the longer they will sleep
Unneeded death-when deadly release is in use the user most often than not will kill people or animals around them This will not only end up with piles upon piles of guilt but a criminal record as well
Quirk by-dinkydays
Some abilities and powers she got from her siblings helping her
*illumi*
Enhanced speed
High intelligence
Immense tolerance to pain
Master thrower
*Milluki*
Skilled haker and programmer
Skilled inventor
*Killua*
Preternatural perception
Immense speed and reflexes
Immense agility
Enhanced stamina
Advanced durability
Enhanced endurance
Resistance to electricity
Immense poison resistance
Muscle and joint control
Claws
Healing factor
Genius level intellect
Master strategist
Master hand to hand combat
Assassin mode(of course she already had this but killua helped her with it)
The snake awakens
Master weapon specialist
Master of stealth
Silent gaits
Rhythm echo
Expert in tailing
(She's already good at playing darts and riding a skateboard)
-She has her own car
-No one from her family knows she's going to school to become a hero except for killua and illumi
-She already got her hunters license
-Caring siblings au
-Illumi has emotions but hides them au
-She was also told that assassin's don't need friends so that made her more emotionless and she grew up believing it cause she made one friend in middle school but her father killed her only friend infront of her which broke her after that she made a promise to never make another friend so another person wouldn't die
-silva and kikyo trying to change au
-Immune to the cold
-Immune to pain
-Immune to acid[she has acid burns on her legs that she covers with pants and boots]
-Illumi is the one that recommended her to ua no one else knew but killua the rest didn't know where she was going and she wouldn't tell anyone but illumi and killua         
-She also has ptsd because of the torture and punishments from her parents if she did something wrong
The yanderes and what kind they are
Pro hero's
Aizawa-platonic yandere
All might-platonic yandere
Hawks-platonic yandere
Midnight-platonic yandere
Present mic-platonic yandere
Endeavor[you'll see why soon]-platonic yandere
Miriko-platonic yandere
Miss joke-platonic yandere
Mout lady-platonic yandere
Nezu-platonic yandere
Students[class 1-A]
Izuku-dependence yandere
Bakugou-obsession yandere
Todoroki-obsession yandere
Kirishima-self harm yandere/obsessed yandere
Denki-yandere
Sero-yandere
Jiro-yandere
Momo-yandere
Mina-yandere
Tokoyami-yandere
Iida-yandere
Tsyu-yandere
Ochaco-yandere
Aoyama-stalker yandere/yandere
Ojiro-yandere
Shoji-yandere
Rikido-yandere
Students[class 1-b]
Monoma-monopoly yandere/stalker yandere
Tesutesu-yandere
Shinso-monopoly yandere[look it up]
Villians
Shigaraki-training yandere/obsessed yandere
Dabi-removal yandere/obsessed yandere
Toga-stalker yandere/obsessed yandere/wrong idea yandere
Twice-dependence yandere
Overhaul-removel yandere
Stain-delusion yandere