Not so Ordinary College Student Kyouhei moved away from his small village to study philosophy at Tokyo University, hoping to escape the life of a Seki before it was thrust upon him. Unfortunately, Kyouhei finds himself witnessing a string of bloody murders involving members of his estranged clan. Another Seki by the name of Aki escaped his prison in the village and is slaughtering them with the use of a mystical doll known as a "Kakashi." And the only one with the power to stop him is Kyouhei's little sister Utao, who has a Kakashi that Kyouhei was supposed to receive, but little in the way of experience to fight with it.
Kyouhei finds himself conflicted between wanting to stop Aki before he kills anyone else, and staying away from the affairs of the Seki he left behind.
This series contains examples of:
- Abhorrent Admirer: How Utao views Yurako.
- Accidental Pervert: Kyohei seems to have one of these moments every episode. Hibino is almost always the victim. In episode 6, she tiredly tells Kyouhei and Utao that she's used to it.
- Alliterative Name: Kyohei Kuga, Shingo Sago (Hibino's father), Kuuko and Kyouske Karahari. Subverted with Kirio.
- Attempted Rape: Shiba, Hiroshiro's assistant and another former friend of Kyohei's, attempts to rape Hibino in order to spite Kyohei. Fortunately, Kuuko shows up in time with a golf club.
- Ax-Crazy: Aki, Mahiru and Kyouhei. He's just better at hiding it than them. All the fault of the Monster Kakashi trying to eat their minds/souls, apparently.
- Bastard Bastard: Aki is The Heavy from early to middle arc and is an illegallitimate son of an outsider who marries into the village. Deconstructed because while he is not entirely sympathetic from the start, the constant abuse he had to endure helped to shape his less-than-stellar personality but what his half-brother and his gang to his dog and Chihaya falls squarely to crime.
- Berserk Button:
- Kuuko doesn't like it when people point.
- Don't ever mention Chihaya-sensei to Kyohei, if you're Aki.
- Big Damn Heroes: Kuuko in episode 12 with the golf club.
- Bittersweet Ending: On the minus sides: All Kakashi are destroyed; most of the trees used for Kakashi's parts are either burned or lost their magical properties; all seki lost their privileges; Karakami village also lost their privileges and many villagers have to move to cities for jobs; Aki, Elder Hyuga, and some others are dead. On the plus sides: Many old grudges were solved in the process; Kirio finally has a chance to live a normal life like he always wanted; and you can argue destruction of all Kakashi is this as their potential for weapons far outweighs their potential for good.
- Bloodbath Villain Origin: Aki, after failed to save Chihaya.
- Bring My Brown Pants: Mahiru wets herself in terror during episode 10's flashback. Understandable given the circumstances.
- Butt-Monkey: The universe clearly enjoys screwing with Utao's little world. Aki is a milder example; after years of imprisonment he's being now occasionally captured and abused... not by his pursuers, but by passing psycho females with no interest in his past crimes.
- Buxom Beauty Standard: Hibino. Utao and Kyouhei are the only Seki/former Seki who know her beyond some variation on "the girl with the boobs".
- The Call Knows Where You Live: Leaving the village didn't help Kyohei.
- Censor Shadow: In the first episode of the anime, but oddly, only in the first episode so far.
- The Clan: The Seki are kind of like a cult with a surprisingly large reach across Japan.
- Curb-Stomp Battle: Kyouhei-controlled Kukuri vs. berserk Magatsuhi ends with the latter's destruction.
- Curtains Match the Window
- Design Student's Orgasm: The OP combines this with the traditional "character roster" approach.
- Evolving Credits: Everytime a new Seki is introduced.
- Get A Hold Of Yourself Man: Koushirou does this to Mahiru in episode 13.
- Hand Puppets: Kukuri and Utao hand puppets appear at the end of each anime episode giving trivia about the series.
- Happily Adopted: Kirio is born as Kuga but he is more comfortable with Koshiro's branch family of Hyuga Clan, his saviors.
- It's Not You, It's My Enemies: Kyohei tries to pull this after the fight against Mahiru. Hibino doesn't care.
- Japanese School Club: Kuuko heads the True Science club. Too bad she isn't good at keeping members.
- The Kid with the Remote Control: Utao. Although she's still a tad green and can use advice from a Big Brother Mentor like Kyohei.
- Leitmotif: Every seki has its own signature melody that kakashis play when they are controled,
- Locked Out of the Loop: Hibino was purposedly kept out of the village's secret by her father.
- The Lost Lenore: Chihaya-sensei is a Type A for Aki. Kyohei seems to have gotten over it thanks to Hibino.
- Love Dodecahedron: The series has become this with all the various characters being introduced. Utao and Mahiru are confirmed to be in love with Kyouhei, who seems to have a crush on Hibino. However, in the past he, and likewise with Atsushi were in love with Chihaya. She had a thing with Aki. Aki, in turn, is implied to be liked by Moyako. Yurako, Moyako's sister, also has some sort of crush / Cuteness Proximity thing towards Utao. That's just the major ones too.
- Love Triangle: Many, bordering on Love Dodecahedron. Those included are:
- Kyouhei->Chihaya<->Aki
- Moyako->Aki<->Chihaya
- Mahiru->Kyouhei<->Hibino
- And Utao->Kyouhei<->Hibino, if the Big Brother Attraction is to be believed.
- The Masquerade: Sekis are unknown beyond the village, and The Clan wants it to stay that way. At least partly unmasked by the Seki battles in the middle of downtown Tokyo.
- Meaningful Name: Whenever Utao uses Kukuri it starts singing. "Uta" is the Japanese word for "song". Takemikazuchi takes its name from a Shinto kami, as does Amaterasu. All of the Kakashi, in fact, take their names from aspects of Shintoism.
- Moment Killer: Kyohei got close to asking out Hibino in the first episode... but a drunk Suou barged in. And again same situation in episode 9.
- Mood Whiplash:
- Seems like a slice of life show about a college student having his first romance. Let's watch the awkward flirt — whoa, dead bodies in the elevator. Okay, let's forget that for a moment and go back to flirting. Scary robot. Cute little sister. Epic battle. Panty shot. Epic battle. Incest joke. Epic battle. Mysterious conspiracy. And back to flirting. And that's just episode 1.
- Utao is a walking Mood Whiplash. The writers can't see to make her focus to stay with the same expression. There's literally one episode where she thinks Kyohei is getting intimate with Hibino and beats him up...only for literally seconds later, her hugging him.
- Mundane Utility: In episode 2, Utao tries to practice controlling Kukuri by using him (?) to play a video game.
- Not Distracted by the Sexy: Kuuko see above and later she sits on Aki and he's completely unfazed.
- Only Sane Man: Kou. The only current Seki willing to talk things out calmly and only interested in his mission to try and recapture Aki rather than pursuing personal vendettas.
- Pay Evil unto Evil: Aki kills Atsushi by cutting his head from the nose off.
- Potty Emergency: Utao and Moyako both have one in the middle of Chapter 47, during a traffic jam. They both make it on time.
- Rival Turned Evil: Aki and Kyohei used to be friendlier before the whole incident with Chihaya-sensei.
- Shout-Out: In the trailer after episode 2, Utao mentions the Konami Code.
- Strong Family Resemblance: Utao looks like a younger version of her mother. So does Kirio, of course
- Suspiciously Specific Denial: Hibino is not interested in Kyohei. At all. Kuuko, however, is no fool.
- Teacher/Student Romance: Chihaya and Aki. The former also did it in the last workplace and the reason why they must moved to Karakami Village.
- Tranquil Fury: A groups of US Army Air Force officers insulted Kakashi and Japan to Elder Hyuga in 1940s and he enacted his retributions decades later to his own village.
- Used to Be a Sweet Kid: Aki. While not being so social in the first place, Chihaya grew on him and made him raise a dog, which finally made him smile for the first time. Her death however, changed everything for him. Despair Event Horizon: In the anime, Aki snaps and kills everyone (including Atsushi and his gang) inside the room they were in.
- Weight Woe: Hibino suffers from this in the second special. Turns out it was her muscles that's causing the problems.
- Your Other Left: Utao has this problem with in episodes 5 and 6.
