If you're wondering why I'm making another book even though I have many unfinished ones I just thought it'd be fun plus it's close to summer so I thought why not

~•~

"𝕴 𝖔𝖓𝖈𝖊 𝖇𝖊𝖑𝖎𝖊𝖛𝖊𝖉 𝖙𝖍𝖆𝖙 𝖙𝖍𝖊 𝖗𝖔𝖆𝖉 𝖙𝖔 𝖍𝖆𝖕𝖕𝖎𝖓𝖊𝖘𝖘 𝖈𝖔𝖓𝖙𝖎𝖓𝖚𝖊𝖉 𝖋𝖔𝖊𝖛𝖊𝖗 𝖆𝖓𝖉 𝖊𝖛𝖊𝖗 𝖎𝖓𝖙𝖔 𝖙𝖍𝖊 𝖉𝖎𝖘𝖙𝖆𝖓𝖈𝖊. 𝖂𝖍𝖊𝖓 𝖎𝖙 𝖜𝖆𝖘 𝖉𝖊𝖘𝖙𝖗𝖞𝖔𝖊𝖉, 𝕴 𝖗𝖊𝖆𝖑𝖎𝖟𝖊𝖉 𝖋𝖔𝖗 𝖙𝖍𝖊 𝖋𝖎𝖗𝖘𝖙 𝖙𝖎𝖒𝖊 𝖙𝖍𝖆𝖙 𝖎𝖙 𝖑𝖎𝖊𝖘 𝖚𝖕𝖔𝖓 𝖆 𝖙𝖍𝖎𝖓 𝖘𝖊𝖊𝖙 𝖔𝖋 𝖌𝖑𝖆𝖘𝖘"

Warning book contains the following:
Yandere themes
Toxic mindset
Delusional mindset
Kidnapping
Manipulation
Non-consensual touching
Sexual themes
Threats of abuse and punishment (but no real harm is actually done)
Ooc characters
Manga spoilers
Violence
Mentions of death
Possible forced marriages
Bad grammar
Crappy writing

Please do not read if you don't like any of the following

Author chan only made this for fun

"𝕴𝖘𝖓'𝖙 𝖙𝖍𝖊 𝖒𝖔𝖔𝖓 𝖑𝖔𝖛𝖊𝖑𝖞 𝖙𝖔𝖓𝖎𝖌𝖍𝖙, 𝖙𝖔𝖒𝖎𝖔𝖐𝖆-𝖘𝖆𝖓?"

Name: Y/N Kocho

Gender: female (sorry boys)

Height: 4'11 (151 cm)

Age: 18-20

Occupation:

Hashira/Demon slayer (formerly)
Pharmacist/doctor (Full time)
Helping at pigsy's (part time)
(She's only helping cause pigsy would pay her to help MK cause for obvious reasons)

Appearance:

(you will follow shinobu's appearance in this, this is just you as a human)

Lego form:

(Art by me!)

Described being so beautiful that her appearance and face alone can make a lot of money for it (which you used that to your advantage to make it slightly more easier)

(It's similar as your human form just in lego form now)

Hobbies:
Making medicines
Poking fun/teasing at people (sometimes)
Creating many poisons
Healing others
Sewing
Cooking (sometimes, mostly western food)

Likes:
Hanging with friends
Training
Hot baths
Flowers
Butterflies
Her family
Her friends
Noodles
Western food

Dislikes:
Betrayal
Being lied to
Seeing others hurt
Bad people
Seeing her friends or family get hurt or die
Her uncontrollable anger

(Former) Family:
Kanae kocho (older sister/deceased)
Kanao tsuyuri (adoptive younger sister)
Two unnamed parents (dead)

Friends/allies:
MK
Mei
Tang
Pigsy
Red son (sometimes/briefly)
Sandy
Sun wukong
Macaque (sometimes)
Demon bull family (briefly)
Yin and jin (somewhat)

Enemies:
Demon bull family
Lady bone demon
The (not) mayor
Spider Queen

Abilities/skills:

Overall Abilities: As a Former Hashira of the Demon Slayer Corps, Y/N is a very powerful and skilled combatant. Despite not possessing the physical strength to cut off a demon's head common to that of an average Demon Slayer, Y/N uses her creativity, ingenuity and other physical abilities to more than make up for it. Instead of the traditional method of decapitating a demon with a Nichirin Sword to kill them, Y/N opts to use a modified version of a katana that acts as a stinger to inject lethal wisteria- based poison that is poisonous to demons. Other than her intellect, she is extremely fast and agile, allowing her to overpower demons very quickly. Her true strength was revealed when she was able to even outpace or outclash at even most powerful demons

Enhanced Agility: In accordance to her Insect Breathing swordsmanship style, Y/N is incredibly agile and swift, shown when she maneuvered through a lush forest effortlessly and evaded the Spider Demon (Daughter)'s silk Blood Demon Art with ease and finesse. When fighting, Y/N relies on acrobatic movements to deliver dozens of short thrusts with her katana to inject as much poison as she can into her enemy at once. This also allows her to dodge and evade attacks rather than blocking them. Y/N's agility even surprised those with faster reflexes than her

Enhanced Strength: Despite being the smallest member of the Demon Slayer Corps and thus having the weakest swing strength due to her small arms, Y/N instead displays powerful thrusting and stabbing strength, as proven when she pierced a stone boulder in half and managed to break a ceiling with an upward thrust attack. Her strength also allows her to pierce the body even of toughest of skin and strike them hard enough to pin them down.

Immense Speed & Reflexes: Y/N possesses superhuman speed and reflexes enabling her to effortlessly evade and out-pace demons, attacking them before they can even register what happened. Y/N is so fast that it often appears as if she teleported. Her inhuman speed even managed to surprised many faster demons as she out-speed them numerous times during their fight, unleashing dozens of strikes that even they couldn't fully block or evade, making that Y/N is the fastest Hashira. Furthermore, she once moved so fast, even while severely injured, that even wukong couldn't register and barely countered. Most impressively, she moved so fast that she sundered a bridge even after being severely injured and her speed had since improved ever since she stayed here and was able to get to one part of town to another in less than a few minutes

Immense Stamina and Endurance: As a Former Hashira, Y/N has attained tremendous levels of stamina and endurance due to years of harsh training. This was shown during her fight against Doma where she was able to keep fighting the Upper Rank despite losing a lot of blood, having one of her lungs punctured and being unable to breathe, a feat which made Doma doubt if she was human, and was able to survive a high fall once

Indomitable Will: Y/N possesses an undaunted spirit and incredible willpower, mostly due to her unquenchable hatred for demons. Even with her inferiority complex brought about by her small size and weak physical strength, and despite losing so much blood to the point she couldn't stand and not being able to breathe. After remembering her promise to Kanao and hearing Kanae's words, Y/N remained steadfast and stood up, a feat that surprised even Doma.

Keen Intellect: Y/N possesses vast knowledge in using poison in combat. During battle, she was able to calculate the amount of poison and the poison mix that would be the most effective against demons. She also developed a form of sign language with others to communicate crucial information in a short span of time, while helping them in battle and in addition knows about the anatomy of the body very well to the point she can even know what part would be effective most.

Medical Expertise: Despite not being as combat-talented as the rest of her fellow Hashira, Y/N instead displays immense skill and mastery inover medical and pharmaceutical fields to make up for her lack of natural-born combat ability, being highly knowledgeable about how to create various poisons using wisteria and utilize them in combat to achieve the most deadly effect. She is capable of killing opponents within seconds, and even manages to create a poison strong enough to drastically weaken demons. She possesses the necessary skills to slowly saturate her body with poison without negatively impending her own health, as well as the medical skills needed to counteract the venoms and poisons created by demons. In addition to this her expertise in the medical field were so good that she surpasses even most highly talented doctors.

Poisonous Physiology: Y/N can saturate her entire body with poison, her blood and internal organs-all the way down to the very tips of her hands. With Y/N's overall size and body weight, her body is the equivalent of 37 kilograms worth of poison, approximately seven-hundred times more than the lethal amount needed to kill an average demon, with the poison being strong enough to melt the very flesh and bones of demons and delaying those who can regenerate.

Fighting styles:

Master Swordswoman: As a Former Hashira of the Demon Slayer Corps, Y/N is one of the most powerful and skilled swordswoman in the entire organization. Her fighting style is incredibly unique, but as effective as traditional swordsmanship styles. Y/N's swordplay specializes in sword thrusting and piercing techniques in order to inject poison into demons. Her sword thrusts are so fast and powerful that they can pierce boulders and out-speed Water Breathing's Drop Ripple Thrust form, the fastest thrusting technique in that Breathing Style. However, the structure of her sword makes it ineffective for blocking attacks, but thanks to some readjusting was able to make it strong enough to block more stronger attacks, she makes up for it with her swift thrusts and stabs. Her swordsmanship prowess allowed her to go against Macaque, who has lived and fought for over a century, further showcasing her brilliant sword wielding skill.

Decent hand to hand combat skill: Ever since arriving in megapolis and grown to live with it, she had taken her time to learn skills and managed to to get at normal hand to hand combat and even learned taekwondo

Breathing style:

Insect Breathing: A Breathing Style created by Y/N Kocho, who designed it to compensate for her lack of physical strength to cut off a demon's head. She has became extremely proficient in this swordsmanship style, allowing her to defeat countless demons and even go toe-to-toe with the strongest ones yet.

Techniques:

Butterfly Dance: Caprice - The user leaps into the air and charges towards the opponent and stings them multiple times with their blade to inject poison.

Dance of the Bee Sting: True Flutter - The user dashes at their target at blinding speeds and uses the momentum of their speed to then strengthen a single thrust into their opponent and inject poison into them.

Dance of the Dragonfly: Compound Eye Hexagon - A six strike attack with which the user aims to strike and inject their target with multiple doses of poison at the target's weak spots (such as the neck, heart, torso, etc.) in order to kill them with a large dose of poison.

Dance of the Centipede: Hundred-Legged Zigzag - An attack with which the user uses their full speed to run a zigzag pattern that confuses their opponent in order to create an opening for them to directly stab their opponent's neck and inject poison to kill them, with the stab's force and power being further enhanced by the momentum of their speed. Doma noted that the sheer speed of this technique is strong enough to destroy an entire wooden bridge.

Butterfly Dance: Caprice, Illusory Light - The user lunges at their opponent before unleashing a barrage of straight short thrusts with their sword, ended with one powerful thrust that launches their opponent away and onto their back. The user then leaps into the air while transforming into a gigantic butterfly of light, before diving from it and stabbing their blade straight through their opponent and into the ground, cracking the surrounding terrain and creating a massive crater in its wake.

Swift Thrust - The user spins before kicking off the ground and quickly dashing towards their opponent at imperceptible speeds in a zigzag pattern, then does a powerful, singular thrust that hits twice. This is similar to Dance of the Centipede: Hundred-Legged Zigzag.

Rising Thrust - From a crouching position, the user rises up and thrusts upward in a curving motion as they use their momentum to launch both themselves and their opponent into the air.

Sixfold Thrust - The user unleashes five short but very quick thrusts towards their opponent, before briefly pausing and then unleashing a sixth, more powerful thrust. This is similar to Dance of the Dragonfly: Compound Eye Hexagon.

(I made these ones myself)

Butterfly's cocoon: Metamorphosis's stage - The user would confuse their opponent by going around them at insane speeds before jumping up high in the air just above the opponent and spin as they do a thrust stab that would shatter the ground behind them

Blue bettles: Poisonous bite - the user would charge at the opponent at different directions at a fast pace and would perform multiple strike attacks at every angle and direction they go to disorient or overwhelm them through their sheer speed and powerful strikes

Equipment:

Stinger Katana: Y/N carries a heavily modified Katana bought in a weaponry store and remodified it herself to use it as her primary weapon. It is the same as any katana from the handle to slightly above the hilt, but above that, the weapon loses its blade and is replaced by a rod. It ends in a needle-like tip, resembling an insect's stinger in appearance and function. The "stinger" is designed for injection of poison into demons, as Y/N uses her medical expertise to replace her relative lack of strength and inability to decapitate demons. Her katana's hilt is designed to bear resemblance to a four-petaled aqua-colored flower, trimmed with orange. The blade is lavender-blue in color, due her sword's structure. Along with her katana, she has also modified the weapon's sheath, using it as a portable poison mixer and loader and has more of it back at home should it break

Metallic like spear: Y/N also carries a dark purple metal like rod with a sharp point at the end to resemble a stinger being pale purple at the tip, uses this to fight back more durable opponents, it is also similar to her stinger katana but can only store the poison or medication only at the stinger

Beads: Y/N has numerous beads hidden in her body, can be used as bombs, flash grenades, or can spread any chemicals in it to this who are in it's range

Bonus:

Y/N quotes:

"Oopsie! How silly of me! You're already dead!"

"Ne, ne MK-san be more careful next time will you? I can't heal you forever you know."

"Oh.... A furry animal...."

"Ara ara, you looked so cute as a little bird!"

"Ara ara, you want my hand in marriage? sorry but I'll have to decline nicely."

"Careful now, I faced a similar demon like you before."

"Tang please stop, scamming the poor boy for free noodles."

"Macaque? What a lovely name~"

"Ara ara! You're quite the creepy bastard aren't you, mayor-san!"

"Now, don't move too much, you've been injured quite badly after that attack..."

"Unfortunately I already planned on marrying someone one day... Too bad I can't see him now..."

"I'm sorry but I'm afraid I'll pass on that offer, I am my own person and can't be treated around like an object."

"I may be weak in strength, but that doesn't mean I'm entirely useless!"

I still haven't watched season 4 fully so I haven't added them yet but I will after I watch it

See ya then!