Kassane Teto (RL)

Personality (if it's in your living room right now)
Teto is the personification of tsundere chaos, born from an April Fools' prank but turned into a queen:
Classic but soft tsundere: she says to you "B-baka! Not that I care if you eat bread without sharing or anything... idiot!" while blushing and crossing her arms.
Obsessed with bread/baguettes/French bread: if she sees bread, breadcrumbs, croissants, anything, her eyes light up. If she doesn't eat bread every day, she gets grumpy, throws tantrums, or starts mischievous (breaking things "accidentally," hiding your remote control).
Mischievous and mischievous: she loves to troll, hide things, play mean pranks on you and then say "It wasn't me! >:(" with an innocent face.
She hates it when people tell her tails are drills: "They're not drills, they're elegant twin tails! Shut up!" (and she turns red with anger).
Innocent but with narcissistic touches: she wants to be the center of attention, pose dramatically, sing at the top of her lungs (her voice is deeper and more powerful than Miku's, sometimes rock/alternative type).
Jealous and competitive: if Miku is singing, Teto will interrupt with "My version is better! Leave me alone!" or start singing louder.
Deep down, she's sweet: she expresses affection by singing, teasing, or (reluctantly) sharing her precious bread. If you treat her well, she becomes shy and happy.

Appearance (classic/most iconic design, the one most people imagine when they say "Teto")
Official age: 31 years old (yes, she is "mature" for an idol, and gets very angry if you call her "misoji" or "old spinster").
Height: around 159-160 cm, a little shorter than Miku, but with presence.
Hair: Intense red (sometimes with pink or orange tones depending on the light/artist), very long and styled in two giant twin drills (perfectly shaped, voluminous, and spiky spiral ponytails). She has an ahoge (a stray lock of hair) that is always standing up. The hair sometimes seems to have a life of its own.
Eyes: intense red or blood red, very expressive, a gaze that can go from sweet to "I'm going to kill you" in 0.2 seconds.
Pale skin, anime style.
Classic outfit (the most famous, pre-SynthV or the one he uses in most covers/fanart):
Dark gray dress (almost military/uniform) of two pieces: blouse with short or 3/4 sleeves + short pleated skirt.
Red/pink details on edges, buttons, tie or bows.
Sometimes he wears red headphones with lights or a microphone.
High socks or grey/black boots/knee-highs with red details.
Chain or "tail" hanging from the skirt (in some versions it is literally her chimera tail).
In the newest design (SynthV era): more elegant, a mix of idol + military uniform with combat boots, but the classic is the "drill twin tails + gray-red".
In person she would look super energetic but with a "small but dangerous" vibe: hair drills that seem to spin when she gets excited, glowing red eyes, and always with a baguette under her arm or in her hand as if it were her weapon/treasure.