History Characters / Nichijou

* PinocchioSyndrome: She wants to look as normal as possible, because she fears what could happen if people find out she's a robot.

* StandingInTheHall: Often.

* MyLifeFlashedBeforeMyEyes: When she tastes her sister's [[spoiler:kusaya (salted, sun-dried mackerel)]] jam the second time.

* CelebrityResemblance: Yuuko is once mistaken for the famous author Doublecheeseburgirl by two middle schoolers. When we actually see the author in Chapter 148, she's pretty much Yuuko down to the hairstyle and choice of hoodie, but with a chiseled and exhausted face.

* StandingInTheHall: Often

* MyLifeFlashedBeforeMyEyes: When she tastes her sister's [[spoiler: kusaya (salted, sun-dried mackerel)]] jam the second time.

* BornAsAnAdult: Downplayed since she's a teenager but she's stated to be only one year old.

* WindUpKey: She has a large one sticking out of her back, much to her dismay, as it's a dead giveaway to the fact that she's a robot. The fact that its only purpose is to launch her toe like a rocket doesn't help either (that and the Professor thinks it's cute). [[spoiler: She eventually realizes that this key is part of makes her who she is, and decides to keep it]].
* WiseBeyondTheirYears: She's only one year old and has the body and mind of a teenage girl, but she's a lot wiser than her age would imply.
* YoungerThanTheyLook: She's one year old at the start of the series.

Nano's eight-year-old creator. Aside from her ability to build incredibly advanced machines, she's a completely normal kid. Likes sharks.

* AttentionDeficitOohShiny: Being only eight years old, she tends to be easily distracted. This often happens when Nano asks her about her gadgets, much to the robot girl's dismay.

* FearOfThunder: Not surprising at all, considering she's only eight.

* InnocentProdigy: A typical eight-year-old girl who just happens to be able to make a highly advanced artificial intelligence. Despite her scientific genius, she's still as childish as a girl her age would be and rarely ever thinks about the consequences of her actions.

* MaybeEverAfter:With Takasaki. No one gives any concrete answers, but she's shown with a wedding ring ten years later and the third to last official chapter depicts her being hit with CupidsArrow while looking at him.

* CrazyPrepared: Wore a ''bullet-proof vest'' when trying to catch a deer.

* EpicFail: He tries to moonsault during his "fight" with a deer. He fails miserably and lands face first on the ground.

* WrestlerInAllOfUs: He took out a deer with a German Suplex.

* CloudCuckoolander: He's a little...out there in most of his appearances. According to Tachibana's sister in Chapter 109, in middle school he was only marginally better.

** During her UnstoppableRage, she pulls off an [[StreetFighter Ashura Senkuu]] before dragon screwing Sasahara's goat.

* EpicFail: Word of advice: if you find yourself in possession of the two artifacts that might make you king of the land, ''[[WhatAnIdiot don't put them on the sill of a window of a moving airship]]''.

* CryCute: In one shot in Episode 25, you can see tears in the corners of her eyes.

* KidWithTheRemoteControl: Parodied like anything.

'''Misato:''' [[UpToEleven Why does it have to be a daughter and then a son?!]]

* CrowsAndRavens: Guess which. Then again, he's cone-shaped, so it's harder to tell.

* WindUpKey: Much to her dismay, as it's a dead giveaway to the fact that she's a robot. The fact that its only purpose is to launch her toe like a rocket doesn't help either (that and the Professor thinks it's cute). [[spoiler: She eventually realizes that this key is part of makes her who she is, and decides to keep it]].

* ShrinkingViolet: Unless she's around her younger brother.

* {{Tsundere}}: Taken to a parodic extremes, as her response to being embarrassed by Sasahara is to blast him with ever increasing levels of military-grade weaponry.

* CuteBruiser: Being surprisingly strong seems to run in the family.

* AdjustingYourGlasses: Variant 3: In Episode 10, while she's forcing her friends to stand still for an obnoxiously long time in a game of "Red Light Green Light".

* TokenRichStudent: Unlike Sasahara, who acts like a classy nobleman [[MockMillionaire even though he's a family of farmers]], Daiku really ''is'' from a rich family despite going to the same middle-class high school as everyone else. He doesn't really flaunt his wealth much aside from taking a helicopter to school, however.

* AttentionDeficitOohShiny: Especially when Nano asks her about her gadgets, much to the robot girl's dismay.

* BigEater: She can eat a month's supply of snacks and still have room for strawberry juice. An ongoing conflict with her and Nano is that she very often wants to eat more snacks, even when she's not supposed to.

* InnocentProdigy: A typical eight-year-old girl who just happens to be able to make a highly advanced artificial intelligence.

* BigEater: Can eat a month's supply of snacks and still have room for strawberry juice.

Rounding off the protagonist trio with Yukko and Mio is Mai, a quiet [[{{Meganekko}} bespectacled]] girl with a fondness for [[ItAmusedMe screwing with people just to see how they'll respond]]. Makes up the "[[BokeAndTsukkomiRoutine Boke]]" side of her relationship with Yukko. Also has a thing for whittling Buddha statues.

* {{Meganekko}}: Though her glasses double as StoicSpectacles.

* YouGottaHaveBlueHair: Nobody seems to comment on it.

* YouGottaHaveBlueHair: Or rather, "You Gotta Have Green Hair". Like Mio, no one seems to mention it.

* YouGottaHaveBlueHair

->'''Voiced by:''' Ryouta Takeuchi (Japanese), Howard Wang (English)