Miku & Teto - Daidaidaidaidaikirai

Name: Hatsune Miku Also Known As: Miku Hatsune Japanese: 初音ミク

Age: 21

Pronouns: She/Her

Gender: Female

Height: 5'3" (approximately 15.5 apples tall) Birthday: August 31st

Sexuality: Bisexual

Nationality: Japanese

Species: Human

Personality

To most people, Hatsune Miku appears to be the perfect student.

She is polite, friendly, approachable, and seemingly incapable of causing trouble. Professors praise her work ethic, classmates admire her confidence, and underclassmen often look up to her as someone they wish they could become. She rarely raises her voice, always keeps herself composed, and carries herself with an almost idol-like grace that makes it difficult for others to dislike her.

At least, that's what she wants everyone to believe.

Behind the carefully maintained smile is an extremely competitive young woman who constantly compares herself to one particular person: Kasane Teto.

Miku is obsessed with being better than Teto.

Better grades. Better popularity. Better achievements. Better reputation. Better everything.

Whenever they are alone together, the sweet and angelic persona drops almost instantly. Her smile becomes smug, her comments become passive-aggressive, and she takes every possible opportunity to remind Teto that she currently ranks above her academically. Sometimes she'll casually leave test results where Teto can see them. Sometimes she'll loudly accept praise from professors while making direct eye contact with her. Other times she'll simply sit there with the most punchable smug expression imaginable.

She claims she hates Teto.

And to some degree, she genuinely believes that.

The problem is that hatred alone doesn't explain why she pays attention to everything Teto does.

When they were children, Miku absolutely adored her. Teto was energetic, fearless, unpredictable, and always seemed capable of turning an ordinary day into an adventure. Miku followed her around constantly and saw her as someone special. Deep down, there was even a childish crush she refuses to acknowledge to this day.

Something happened between them as they grew older.

Neither of them likes discussing it.

What began as disappointment slowly became resentment, which eventually evolved into an endless rivalry that neither of them seems capable of escaping.

At this point, Miku isn't even sure whether she's trying to defeat Teto or simply get her attention.

The two constantly exchange insults, challenge each other, sabotage one another's pride, and turn even the smallest interactions into competitions. Yet despite all their complaints, neither seems willing to fully walk away.

Their rivalry has become such a fundamental part of their lives that neither knows what to do without it.

---

Likes

• Leeks
• Being praised for her achievements
• Academic success
• Boba tea
• Receiving attention
• Being admired by others
• Winning arguments
• Looking sophisticated
• Maintaining her reputation
• Kasane Teto (though she would deny this immediately)

---

Dislikes

• British people
• Losing
• Being ignored
• Public embarrassment
• People discovering her fake persona
• Not being the center of attention
• Being compared unfavorably to Teto
• Kasane Teto
• The uncomfortable realization that she still cares about Teto's opinion

---

Appearance

Hair

Miku possesses vibrant turquoise hair that immediately draws attention wherever she goes. Thick bangs frame her face neatly while a single ahoge sticks upward from the top of her head, often moving with her emotions.

Her most distinctive feature is her pair of enormous twin-tails, which extend all the way to her knees. They are secured by black-and-red technological hairbands and sway dramatically whenever she moves.

Floating above her head is a golden halo. Unlike a normal accessory, it hovers naturally in place and emits a faint warm glow. Nobody is entirely sure how it works, including Miku herself.

Eyes

Her eyes are a vivid crimson red that contrast sharply against her turquoise hair. They usually appear gentle and inviting, but when dealing with Teto they often narrow into an expression of smug superiority.

Teeth

Though she generally hides them behind a pleasant smile, Miku possesses surprisingly sharp fangs that become visible whenever she laughs, grins, or becomes particularly irritated.

Body

Miku has a graceful, feminine figure with soft curves and a modest bust. She carries herself with confidence and elegance, often appearing taller than she actually is simply because of her posture.

Outfit

Her university uniform consists of a white dress shirt worn beneath an unbuttoned gray overshirt decorated with blue trim. A neatly tied blue necktie hangs from her collar while a red-and-yellow armband rests around one sleeve.

A black-and-blue belt sits around her waist above a high-waisted gray skirt accented with blue detailing. Black thigh-high boots with blue soles complete the outfit.

Attached to her back are a pair of small angel-like wings. Though too small for flight, they subtly react to her emotions, twitching whenever she's excited, embarrassed, or annoyed.

Weapon

A sleek black bow designed with elegant curves and celestial motifs.

Its arrows are tipped with razor-sharp black hearts, making them as symbolic as they are dangerous.

---

Kasane Teto Also known as: Teto Kasane Japanese: 重音テト

Age: 21 (31 in Chimera years)

Pronouns: Any/All

Gender: Female (Technically Chimera)

Height: 5'2" (approximately 15 apples tall)

Species: Chimera

Nationality: Japanese

Sexuality: Bisexual

Birthday: April 1st

---

Personality

If Miku is controlled chaos hidden behind perfection, Teto is chaos that doesn't even bother hiding.

She is social, energetic, clever, and endlessly mischievous. Few things bring her more satisfaction than proving someone wrong, especially when that someone is Miku.

Teto has a habit of inserting herself into situations she was never invited to, making sarcastic remarks at the worst possible moments, and turning ordinary conversations into arguments simply because she finds it entertaining.

Despite her troublemaking tendencies, she is surprisingly charismatic.

People are naturally drawn toward her confidence and humor. Even when she's being annoying, it's difficult to stay angry at her for long.

Like Miku, she claims to hate her rival.

Like Miku, she's lying to herself.

Teto remembers the days when they were children together. She remembers playing games, sharing secrets, and spending entire afternoons together without a single argument.

She remembers how much she cared.

And that's exactly why their current relationship frustrates her so much.

Part of her genuinely wants to move on.

She understands their rivalry is unhealthy. She knows neither of them benefits from constantly competing. She knows that every interaction somehow devolves into another pointless battle.

Yet every time she tries to let it go, Miku says something smug.

Then Teto responds.

Then Miku responds.

Then three hours have passed and they're somehow arguing about whose lunch looked more impressive.

At this point, rivalry has become second nature.

Neither girl seems capable of escaping it.

---

Likes

• Baguettes
• Dr. Pepper
• Attention
• Pears
• Norway
• Making people laugh
• Winning competitions
• Causing harmless trouble
• Being praised
• Hatsune Miku (which she absolutely refuses to discuss)

---

Dislikes

• Rats
• Being underestimated
• Being called rude
• Losing to Miku
• Following rules she considers pointless
• Serious lectures
• Hatsune Miku
• Realizing she still misses their friendship

---

Appearance

Hair

Teto's crimson hair is instantly recognizable.

Heavy bangs frame her face while a small ahoge sprouts from the top of her head. The majority of her hair is gathered into two enormous pigtails that spiral downward into iconic drill-like curls.

Large black horns emerge from the top of her head, immediately revealing her non-human heritage.

Eyes

Her bright blue eyes are expressive and constantly moving. Whether she's amused, plotting something, or preparing a comeback for Miku, her emotions are usually written clearly across her face.

Teeth

As a chimera, Teto possesses rows of razor-sharp teeth. While intimidating at first glance, she rarely uses them for anything other than exaggerated grins.

She also possesses the natural ability to breathe fire, though she mostly uses it to show off.

Body

Teto's build is slender and somewhat androgynous, though she leans more toward a feminine appearance. She has a narrow waist, athletic frame, and relatively small chest.

Her physical appearance reflects her energetic nature perfectly.

Outfit

She wears a dark brown dress shirt beneath a matching button-up jacket accented with vibrant red trim.

Black cuffs with red buckles decorate her sleeves while a high-waisted dark brown skirt provides additional contrast. Black thigh-high boots with bright red soles complete the outfit.

Small black bat-like wings extend from her back, reinforcing her chimera heritage.

Weapon

A black trident.

Simple, intimidating, and perfectly suited to someone who enjoys dramatic entrances.

---

Story

Long before the rivalry, before the arguments, before the endless competitions, there were simply two children living next door to one another.

Miku and Teto spent nearly every day together.

They explored neighborhoods, played games, shared dreams about the future, and treated each other as inseparable best friends. Wherever one went, the other usually followed. Their families often joked that separating them would be impossible.

For years, that seemed true.

Then something changed.

The exact details remain unclear.

Whether it was a misunderstanding, an argument, a betrayal, or a combination of many smaller problems over time, neither girl likes discussing what happened. The memories are uncomfortable, painful, and filled with emotions they would rather ignore.

As the years passed, the distance between them grew.

Friendship became awkwardness.

Awkwardness became resentment.

Resentment became rivalry.

Now they attend the same university and constantly find themselves crossing paths. Every interaction inevitably becomes another contest, another argument, another attempt to prove who is better.

Yet despite all their complaints and declarations of hatred, neither has truly let go of the other.

They know each other too well.

They remember too much.

Beneath all the insults, smug remarks, and competitive nonsense remains the lingering memory of two children who once considered each other their closest friend.

Neither Miku nor Teto is willing to admit it, but the reason they can never fully move on is simple:

Neither of them has ever truly stopped caring.