[[quoteright:234:http://static.tvtropes.org/pmwiki/pub/images/recorderandrandsell2_2083.png]]
[[caption-width-right:234:Atsushi(left) and Atsumi(right)]]

Atsushi Miyagawa is an elementary student who looks like an adult. His older sister Atsumi is a high school student who looks his age. Since they act like you'd expect kids their real ages to act, this can cause... [[HilarityEnsues problems]].

''Recorder and Randsell'' is a {{yonkoma}} that was adapted into a three-minute anime that began airing in January 2012 and [[http://www.crunchyroll.com/recorder-and-randsell was licensed for simulcast by Crunchyroll]].

A third season aired as a part of the Summer2013Anime season.

And if you're wondering, [[AndKnowingIsHalfTheBattle "randsell" refers to the type of backpack Atsushi's wearing]].
[[hardline]]
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!This series displays the following tropes:

* AccidentalPervert: Atsushi trips and falls on top of Moriyama-sensei [[FunbagAirbag landing head first between her breasts]] and his hands on top of them. When Moriyama-sensei runs away in shock, [[ChildrenAreInnocent Atsushi is oblivious to what just happened]].
* BigLittleBrother: While it is TruthInTelevision. Atsushi takes it to the illogical extreme.
* TheCameo: Hana and Mayu from ''Manga/MoritaSanWaMukuchi'' make an appearance in the first episode, while Atsushi and Atsumi makes an appearance in the last episode of the former.
* ChildrenAreInnocent: Atsushi is too clueless even for a 10-year-old.
* ChristmasCake: Miura, one of the female officers, is in her 30's, and fits the bill.
* DeadpanSnarker: Atsumi has her moments, due to her status as the OnlySaneMan.
* DeconstructedTrope: OlderThanTheyLook and YoungerThanTheyLook.
* DoesNotLikeMen: Moriyama-sensei.
** She is still decidedly heterosexual, though, and exhibits a physical attraction to Atsushi, though she tries to fight against it. This is seen when Atsushi wears a fishnet shirt to school.
* TheFaceless: Take-nii
* FairCop: Kijima, Miura and Aono, who are rather kind and understanding to poor Atsushi.
* GagBoobs: Moriyama-sensei.
* ImTakingHerHomeWithMe: Sayo gives Atsumi this treatment. Atsumi is not amused.
* InnocentInnuendo: "Yours is too big. It would never fit!"
** A lot of what Atsushi [[MistakenForPedophile says in front of the neighbors comes out as this]] [[RunningGag (and then he gets arrested)]]
* LuckyCharmsTitle: The anime the first season had a musical note at the end and the third season had a star.
* {{Meganekko}}: Moriyama-sensei.
* MistakenForPedophile: Poor Atsushi constantly suffers from this, as confirmed via {{Word of God}}.
* OlderThanTheyLook: Atsumi and later Takumi.
* OnlySaneMan: Atsumi, probably the most reasonable character of the series.
* PlayingAgainstType: Double Subverted, Atsumi is uncharacteristically sweet, gentle, kind and mature for a girl who is played by RieKugimiya, the queen of immature, violent, tyrannical girls. She is still small though.
** RyotaroOkiayu usually plays stoic, cool {{Bishonen}}, and while Atsushi certainly is a Bishonen, he acts like (and is) an immature kid.
* RunningGag: [[MistakenForPedophile Atsushi being mistaken for a molester]].
* [[SpoilerOpening Spoiler Ending]]
* TallDarkAndHandsome: Sayo's ideal man. Atsushi happens to fit her specifications too well.
* WhyDoYouKeepChangingJobs: Take-nii tends to fall in love with a co-worker at every job, then decide to quit after breaking up with her.
* YoungerThanTheyLook: Atsushi. While his classmates apparently have no problem with it, the adults actually get grossed out just by the sight of him acting his age.
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