This is a story about Kyouka-sama told by Kyouka-sama for Kyouka-sama!
(a.k.a. Frenzied Family Diary, or Diary of a Crazed Family)An ongoing light novel series that started in 2005, followed by a manga in 2007, and an anime 2008 by Nomad.A thousand years ago, Enka, an evil dragon thing, was defeated, but died cursing that its child would destroy the world in... a thousand years. In the present day, DNA testing has narrowed it down to six candidates. Ouka, a paranormal investigator, is ordered by the government to marry one candidate (Kyouka) and adopt the rest as children, in the hopes of discovering the true child of Enka and raise it in a loving family situation to placate it.The Top Six "Most Likely To Destroy The World", now the Midarezaki Family:
In addition to those character types, KKN uses the following tropes:
Accidental Misnaming - "Pierre". In a bit of a subversion, Pierre reveals to Ouka later on that he doesn't mind the name. Since Kyouka assigned it, not like there's much room to challenge it anyhow. Also played straight with Yuka's classmate Yamaguchi. No matter how much she tries, she just can't get his name right.
A-Cup Angst - Kyouka lacks a chest, much to her dismay.
A God Am I - Kyouka constantly refers to herself as a goddess to be worshiped and obeyed without question. Constantly. But that's just her ego talking.
Butt Monkey - Episode 19 gives us the Klutz Devil, who we immediately sympathize with and who promptly gets Killed Off for Real simply by virtue of A) being involved in a death prophecy and B) not being a main character.
Catch Phrase - As a most wonderful fact, I, Kyouka-sama, am omniscient and omnipotent!
Cat Girl - Milcatopy of the episode 12 side story, in addition to (and more legitimately than) Kyouka. When Kyouka herself encounters another Cat Girl, she gets rather upset:
That's not the problem here! You're copying my character setting! You're violating copyright law! And violating one's right to one's likeness, too!
Censor Box - A black bar covering the eyes on the Mona Lisa.
Cheeky Mouth - Virtually the entire cast either has no mouth or no jaw movement. And now you know why Teika doesn't get very many lines.
I Am Spartacus - Done in the final episode when Kyouka is possessed by Water. Everyone claims to be the true Great Destroyer. Even Chika tries to get in on it even though she definitely isn't the true child of Enka.
Pirates - Episode 10, led by Mujakky, a pirate captain who looks like an elementary schooler. They seem to function more like fishermen, though, and profess a code of love and peace, to Ouka's confusion.
The Pirates Who Don't Do Anything - Massively, massively subverted, one episode has a pirate captain girl who doesn't want to kill or steal. It turns out her "rival" was actually fulfilling her father's last wish by tricking her to kill him; thus ensuring that she would either be a pirate; or else quit. She embraces her new self with relish.
Shinigami - Ouka has one as an Unlucky Childhood Friend. She also has sisters. This seems to be a title for Monster Slayers in Ouka's organization. Specifically individuals who have slain a thousand monsters earn the title of "Shinigami" and the right to wear the hanya mask that signifies that status.
Shipper on Deck: It's natural that Kyouka and Ouka are shipped by their 'children'. Yuuka especially. This varies from making sure that daddy isn't cheating to leaving the two alone for their anniversary dinner.
Shout-Out - Quite a few Western movies, for example, the pirate episode had Gekka turning giant, singing a nursery rhyme, and pulling a ship down in an obvious rendition of the second Pirates of the Caribbean movie.
Something Completely Different - Episode 12, "Picked up a Cat on Monday" plays like something out of an eroge, with only Ginka and Kyouka making appearances...and Ginka's in drag the whole time. Episode 20, "The Forest of Vitamin C" is a complete and total Mind Screw from start to finish.
Super Window Jump - Ouka and Kyouka jump through a window in their hurry to get to the balcony.
Wave Motion Gun - Hyouka is armed with a really, really big one that comes in quite handy.
What Happened to the Mouse? - The revelation that "Kyouka" is actually from a race of animal ears that possess people brings up some uncomfortable implications about the girl stuck as her host, but this is never addressed.
What Is This Thing You Call Love?? - It's the question Oasis came to Earth to find out. Chika and Madara end up giving her the completely wrong impression of what love is. And then there's Kyouka's tendency to base her "love" on whatever she sees in TV and manga...
Wholesome Crossdresser - Madara, though with that voice alone it hardly comes as a surprise to the viewer or anyone who's seen the Image Song album. Also, Pierre looks quite happy to save Chika in volume 2 while wearing the girls' school uniform. Ginka doesn't really count, drag or no drag.