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Manga / Engaged to the Unidentified
aka: Mikakunin De Shinkoukei

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Benio, Kobeni, and Mashiro.

Kobeni: "A guy (Hakuya) is going to be staying with us?!"

Akane: "There are a few circumstances..."

Kobeni: (Thinking) Oh, maybe it's for family reasons. It might be wrong to pry.

Akane: "By the way, Grandpa arranged for you to marry him."

- Mikakunin de Shinkōkei, Chapter 1.

Kobeni has just turned 16 years old, and gets more than she bargained for on her birthday when her mom Akane introduces her to Hakuya and Mashiro, her new fiancé—and his younger sister. Now all of a sudden she now has to deal with living together with them, apart from having to deal with her own overprotective sister Benio. Apparently Kobeni and Hakuya met as kids, though Kobeni can’t seem to remember anything because she suffered an accident shortly after. Their engagement was mandated by her grandfather, though Kobeni is unsure how to feel about all this. For now, it seems she’s just going to go with the flow until things smooth over.

Engaged to the Unidentified (a.k.a Mikakunin de Shinkōkei (未確認で進行形)) is a 4koma by Cherry-Ai, and serialized in Ichijinsha's Manga 4-Koma Palette magazine. An adaptation aired during the Winter 2014 Anime season.


Two OVAs were produced for the series: the first one, included in the first Blu-Ray volume as an extra, tells of the Yonomori and Mitsumine siblings' (with Mayura tagging along) trip to the UMA village for some rest and relaxation at some hot springs after Hakuya wins the grand prize at a shopping district draw; the second one, packaged with volume 5 of the manga, gives a glimpse of Benio and Kobeni's childhood, while its second half gives a glimpse at Mashiro and Hakuya's life at their mountain village prior to moving to the city... And some surprising implications about the origins of the Yonomori family itself.

Crunchyroll is streaming the anime, and it can be viewed here for viewers in the US and Canada.


Mikakunin de Shinkoukei gives examples of the following tropes:

  • Accent Relapse: Konoha reverts to her Tohoku Regional Accent (which is considered "backwater" in Japan) when she gets riled up.
  • The Ace: Benio, to a ridiculous degree. Kobeni is close to this as well, being a smart student as well as a good cook, but finds herself Overshadowed by Awesome compared to her big sister.
  • A-Cup Angst: Mashiro is quite envious of Kobeni's rather large breasts in episode 2. The latter tries to downplay it by saying they're more of a hindrance, but the former says that's what all big-breasted girls say.
  • Adorably Precocious Child: Mashiro often tries to act mature and rational, but it quickly becomes apparent that she really is a little kid, with such instances as her Suspiciously Specific Denials about foods she dislikes and her fear of aliens and UMAs.
  • Aloof Big Brother: Subverted, Hakuya could have easily been one given his stoic nature. But he's actually very attentive and protective of Mashiro.
  • Angry Dance: Mashiro in episode 3, as seen here.
  • Arranged Marriage: Between Kobeni and Hakuya. Arranged by Kobeni's deceased grandfather, who was a friend of Hakuya's grandfather. This later gives Konoha hope, as she believes if they were forced into the marriage and don't like each other, then she can nab Hakuya for herself.
  • Arrow Gram: The main method of communicating with Mashiro and Hakuya while they're living with Kobeni and Benio.
  • Art Evolution: The art in the manga. Everyone starts out with rather sharp features (to the point that it would be hard to convince anyone that Kobeni had a weight problem), but eventually settles into the rounded style shown in the anime's eyecatches and end cards.
  • Art Shift: Benio is prone to being drawn in an exaggerated shoujo style whenever she starts complaining about Kobeni and Hakuya becoming closer.
  • A Sister On Each Arm: Benio's fantasies involve this, with Kobeni and Mashiro obviously the ones clinging to her.
  • Attention Deficit... Ooh, Shiny!: Mashiro's mom keeps getting sidetracked by confectioners and food vendors on her way to the house her children are staying in. By the time Kobeni runs into her, she's already accumulated a considerable collection of bags.
  • Audience Surrogate: Considering this is a seinen series, Benio's obsessions and her common use of 2chan-speak would suddenly make sense—a considerable segment of the audience do have such obsessions and frequent imageboards such as 2chan.
  • Bedmate Reveal: Kobeni wakes up to Benio staring at her in episode 3. She just ignores her sister, causing the latter to phone Nadeshiko about it.
  • Beneath the Mask: In public, Benio is a straight-A student beloved by her juniors. At home? She's a somewhat loopy teenager with a fixation on both her sister and her probable sister-in-law. Subverted because she acts the same way in front of said two.
  • Big Brother Attraction: Inverted with Benio, whose fixation on her younger sister Kobeni goes far beyond just "sisterly".
  • Big Damn Heroes: Hakuya saves Kobeni from falling off a particularly high cliff in episode 12. Averted with Benio, Mayura, and Kobeni's mother, who arrive in a helicopter a few scenes later after he's already located and saved her.
  • Bishie Sparkle:
    • Benio, Benio, Benio, when she's in full onee-sama mode. Nadeshiko can do this too, apparently.
    • Hakuya seems to be able to do it as well. But it seems only Kobeni can detect it, as seen in episode 4.
  • Blank White Eyes: Kobeni and especially Mashiro display these in episode 5 a lot.
  • Blood from the Mouth:
    • Played for Laughs in episode 8 with Benio after hearing from Kobeni that Mashiro and Konoha aren't fighting over her.
    • Played for Laughs in episode 10 with Benio again. She suffers from it twice, once from Mashiro smacking her for interrupting Kobeni and Hakuya, and later when Kobeni and Hakuya try to keep a secret from her regarding matching handkerchiefs.
  • Book Dumb: Two examples:
    • Played straight with Mashiro. While Kobeni assumes Mashiro is in her class despite being a few years younger due to being really smart, she actually isn't much smarter than someone around her age. That said, Kobeni still thinks she's doing really good considering she was in grade school prior to moving to the city.
    • Zigzagged with Hakuya. He has excellent test scores so long as it involves rote memorization, due to studying a lot and not having much else to do. In fact in episode 6 the teacher announces that he has the highest score in the class, a 96%. (Kobeni meanwhile got an 80%, while poor Mashiro scored a 44%.) However, when he takes a test requiring practical application, he fails badly (25% in math).
  • Bratty Half-Pint: What Mashiro comes off as to viewers, especially when one considers her initial treatment of Kobeni, who is her prospective sister-in-law.
  • Brick Joke: In the second OVA, where Nadeshiko (as a child) asks Kobeni if she really has any idea what "Sexual Harrassment" actually means. At the end of the episode, she reacts favorably to Kobeni (as a teenager) now fully realizing the creepy implications of Benio's actions during that time.
    Kobeni: You still remember that?!?
  • Bridal Carry: How Hakuya carries Kobeni after he rescues her in episode 12.
  • Broken Pedestal: How Mashiro views Benio. While the latter acts like a model student at school, and is beloved by the students, at home or in private she acts very perverted towards the former. As a result, Mashiro often wonders if the students suffered some kind of brain damage due to the way they fawn over Benio.
  • Camera Fiend: Niko, who's in the newspaper club.
  • Cannot Spit It Out: Kobeni once she starts having feelings for Hakuya. In episode 9, Mashiro points it out for them.
  • Cassandra Truth: Shirayuki asks Benio in episode 5 to keep their newly learned secret that she, Hakuya, and Mashiro are Youkai to themselves. While Benio does agree, the former also says that even if she did say anything, nobody would believe her anyway due to how absurd it would sound.
  • Cat Smile:
    • Mashiro displays one in episode 5. Bonus points for doing it while wearing some cat pajamas.
    • Benio has one in episode 10 when wondering if she'll get something from Mashiro for White Day. The latter immediately dismisses that notion.
  • Charles Atlas Superpower: Despite supposedly being a normal human as far as Mashiro or Hakuya are concerned, Benio's been shown to be capable of frankly ridiculous physical feats. While the main series shows how she's able to jump down from the second floor of her school unharmed, the OVAs show how she's capable of keeping up with Mashiro, duplicating everything Mashiro was doing — super speed, ballistic jumps, walking on water, even running across the sides of trees. And judging from what was shown in the second OVA, she's been able to do this as a child (where she jumps to the top of the park's jungle gym from the ground in a single bound, without as much as a running start). A conversation by some of the older folk in Mashiro's hometown in the same OVA hint that the Yonomoris might not be as mundane as they think they are.
  • Chekhov's Gun: While Kobeni is sick in episode 4, she starts having a small flashback to the accident when she was younger. She mentions holding onto something soft, and it appears to be a patch of fur, probably from a dog...
  • Children Are Innocent: In episode 4, Benio is against Hakuya staying at home alone with Kobeni. Mashiro is unsure why that is, and misinterprets what the other two are saying, while its clearly a Double Entendre that doubles as a Sexual Euphemism.
  • Childhood Friends: The second OVA shows that Benio and Nadeshiko have been friends since before grade school.
  • Clingy Jealous Girl:
    • Zigzagged with Benio. In episode 5, she gets a little jealous and displays a Battle Aura when Hakuya seems to be comforting Kobeni, a job she used to do. But then she immediately reverses herself, and says she has no problem with it. She does it again though at home later in the episode. Then she does similar things in episode 6, simultaneously wanting to see Kobeni in a wedding dress, while not wanting to give her up for marriage. She goes full blast again after overhearing that Kobeni and Hakuya have reached the "lovey-dovey" portion of their relationship.
    • Played straight with Konoha Suetsugi, who absolutely despises the preferential treatment Kobeni at first, and later Mashiro, seem to get from Benio. Even when she confronts the latter about it, despite Mashiro's complaints about Benio, Konoha only focuses on the fact that the two spend so much time together and gets jealous.
  • Cloudcuckoolander's Minder: Nadeshiko, the student council vice president, is this to Benio. She pretty much makes it her duty to make sure Benio's eccentricities — like, say, having an unhealthy obsession with her sister and Mashiro — don't get out of hand.
  • Color Failure:
    • Hakuya suffers one after shopping with Kobeni for the first time in episode 3. He later comments that she must be incredibly brave to have to deal with crazy crowds like that everyday.
    • Kobeni's reaction to learning that the young woman she was helping find her way was actually Hakuya and Mashiro's mother. In other words, her future mother-in-law.
    • Benio suffers from this in episode 8 after Kobeni innocently says Konoha and Mashiro's debate had nothing to do with her, after the former spent the entire episode thinking they were fighting over her. They were, but not in the way Benio probably thought, as Konoha worships her, while Mashiro despises her.
    • Mashiro suffers this in episode 8 as well, after Konoha clarifies what she was arguing about with the former in the first place. About using their magic to live with Benio.
  • Colourful Theme Naming: The Yonomori sisters and their mother have names to do with red (Kobeni means Scarlette, Benio means red-thread and Akane means brilliant red); the Mitsumine family likewise have names related to the color white (Shirayuki: white-snow; Hakuya: white-night; and Mashiro: pure-white).
  • The Comically Serious: Hakuya.
  • Comedic Lolicon: Benio's fixation on the much younger Mashiro is always Played for Laughs.
  • Corner of Woe: Benio sits in the corner in episode 8 after Kobeni tells her Mashiro and Konoha are definitely not fighting over her.
  • Country Mouse: Both Hakuya and Mashiro come from a small town located deep in the mountains. While Hakuya seems to have adjusted quickly to his circumstances, Mashiro certainly acts the part of the country mouse, as she's constantly boggled by the things readily available in the city.
  • Covert Pervert: Benio appears to be a model student at school, beloved by all the students. At home however she likes to smother Mashiro, and occasionally Kobeni.
  • Cry Cute: Kobeni in episode 9 after Konoha suggests she break off her engagement to Hakuya.
  • Cryptid Episode: In one episode, the cast leave the city for a while and may or may not have found an analogue to Nessie.
  • Cuteness Proximity: Benio towards Mashiro, much to the latter's chagrin.
  • D-Cup Distress: Kobeni's not really happy about her bust or hips, as for her it's a bad reminder of how easily she puts on weight. For her admirers though? A gift from heaven.
  • Deadpan Snarker: Nadeshiko typically does this towards Benio whenever the latter is acting foolish.
  • Death Glare: Hakuya's default expression.
  • Delayed Reaction: Kobeni has a brief one in episode 9 after Benio asks if she's jealous of how the former dotes on Mashiro. It takes her a couple of seconds to register what was said, then she claims she does.
  • Denied Food as Punishment: A slight variation of this in episode 6. After Mashiro teases Kobeni about Hakuya, the latter decides that dinner that night would consist of everything the former hates, such as natto. She apologizes for it immediately.
  • Did I Say That Out Loud: Konoha does this a few times in episode 7. Kobeni is usually within range of hearing it, giving the former a lot of shock once she realizes she spoke out loud.
  • Didn't Think This Through: In episode 8, Konoha asks Mashiro to walk with her up to the school rooftop to discuss their relationship with Benio. They get exhausted racing each other up there, then the wind is quite strong and cold. Not only do both girls feel cold, they also can't hear what the other one is saying, so they both propose going somewhere else instead. When they both jump to the ground from there, the impact of the fall finally kicks in a few moments after they've landed as well.
  • Disappeared Dad: Both the Mitsumine's father and the Yonomori's father are not around: the former seems to have died while the latter seems to have divorced.
  • Does Not Like Spam: Mashiro's obvious dislike for natto and other types of sticky food.
  • "Do It Yourself" Theme Tune: Both the opening and ending songs are sung by the voice actresses of Kobeni, Benio, and Mashiro.
  • Dull Eyes of Unhappiness:
    • Mashiro displays some in episode 9 after Benio says she'll "take responsibility" for the fight the former had with Konoha regarding herself, and suggests the two get married. She displays some again at the end of the episode after Benio gives her an autographed picture of herself, thinking that's why Mashiro was secretly taking pictures of her.
    • Several of the characters display them in episode 11 after various things, such as Benio finding out Kobeni, Mashiro, and Hakuya are going out for fun without her.
  • Even the Girls Want Her: Benio, part of what makes her The Ace. Her first appearance at school includes her walking past crowds of guys and girls who gaze at her adoringly.
  • Expressive Hair: Mashiro's ponytail. It wags like a dog's tail when she is happy, and sticks straight out and becomes frayed when she is scared.
  • Expy: Shirayuki is extremely similar to Isumi Saginomiya. They both wear Kimonos, are easily distracted, get lost all the time, and they are both utterly clueless. Even their appearances are similar, as both have long dark hair with the same cutesy face.
  • Fanservice: Of the blink and you'll miss it type. Pay close attention to the still images of Kobeni in the opening animation. A good lot of them wouldn't be out of place in a gravure shoot. Indeed, all of the images in the opening seem to be deliberately done in the style of photographs one would expect to find in teen fashion magazines, or commemorative idol albums.
  • Flash Step:
    • Hakuya saves Kobeni from slipping on the sidewalk in the first episode. What makes it unusual is that he was inside the house at the time, yet is able to save her from hitting the ground after she slips. Kobeni doesn't think too much of it at the time.
    • Benio seems capable of doing them as well. In episode 8, after calling out to Kobeni, she is some distance away from her sister in the hallways. Then in the next moment, she becomes a blur, then instantly appears in front of the latter.
  • Flying Broomstick: While on cleaning duty, Mashiro hops on a broomstick and jumps up and down a couple of times on it in episode 12. Benio, who was observing her from the third floor window at their school, is absolutely delighted to see that, and teases her about it at dinner.
  • Food as Bribe: Benio tries to lure Mashiro into the student council office with snacks.
  • Foreshadowing:
    • All of Kobeni's comments on how Hakuya possesses dog-like traits? They mean something.
    • Another subtle one is Kobeni's purple eyes, which match up with Hakuya's... except as flashbacks show, Kobeni had pink irises like Benio. This is due to how Hakuya shared half of his power to save Kobeni's life when they were children.
    • The conversation between the adults in the second half of the second OVA, on how some of the younger folk don't like to come back to the country after moving to the city, points to just how the Yonomoris might be related to the Mitsumines, and just why Kobeni's grandfather was so friendly with the mountain folk to begin with.
  • Forgotten First Meeting: Kobeni remembers nothing about Hakuya at all, aside from the fact that her grandfather used to bring her to Hakuya's hometown during holidays.
  • Gainaxing: Kobeni in the OP. Interestingly, it's toned down in the actual show, and episode 3 even focuses on her chest a couple of times in gym, but Kobeni's chest doesn't move nearly as much as in the opening.
  • Giving Up the Ghost:
    • Mashiro does this in episode 5 after finishing a test which she was totally unprepared for.
    • She does it again after passing out from fright after spotting something unusual in the forest in the first OVA. It ultimately just turned out to be Kobeni and Hakuya whom they got separated from earlier.
  • Gratuitous English: Used a couple of times in episode 8, especially during the next episode preview.
  • Ham-to-Ham Combat: Mashiro and Konoha do this in episode 7, arguing about Benio. They do it again in episode 12, this time regarding UMAs.
  • Hand-Hiding Sleeves: Mashiro's school uniform's blouse, which was likely made for someone much older and much taller than her.
  • Hate at First Sight: Konoha initially towards Kobeni, although she's okay with it later due to the latter being Benio's little sister. Played straight with her attitude towards Mashiro, whom she views with contempt due to how Benio fawns over her despite having only been at the school for a very short time.
  • Heroic BSoD: Benio suffers from this whenever she thinks those she fawns over hate her. Played for Laughs.
  • Heroic Second Wind: Played for Laughs in episode 11. After Benio is dragged by Nadeshiko to help out at a charity event, she grows depressed due to not being able to join Hakuya, Kobeni, and Mashiro on their day out. Two little girls ask her at the event if she's okay, and due to them calling her "big sister", she gets instantly recharged and feels better afterwards.
  • Hidden Depths:
    • One of Hakuya's defining character traits is that outwardly he appears shy, sleepy, mute and generally as not paying attention. In reality he simply prefers things to be quiet and he is smart, sharp and very fast both in reaction and actual speed due to being a youkai and it becomes very obvious that he'd do absolutely everything he can to help his family, his bride-to-be and her family as well.
    • Though Benio is markedly intrusive, selfish and pushy, it's shown that she cares deeply for both Kobeni and Mashiro, and would turn the world upside down at the mere hint that they'd be wronged or hurt. For Hakuya, though? They just plain don't like each other.
  • High-Pressure Emotion: Mashiro turns red and vents steam from her head when saying she wants nothing to do with Konoha in episode 10.
  • His Own Worst Enemy: Benio would be considerably closer to both Kobeni and Mashiro if she weren't so maniacally overbearing
  • Hypocritical Humor: In episode 10, Benio sees Kobeni and Hakuya leaving school together. She thinks that's a bad idea, and also dangerous that Mashiro would then have to walk home alone. So she jumps down from the second floor to tell them that. Kobeni immediately asks her if she's okay having just jumped from that level.
  • Ill Girl:
    • Surprise, Kobeni is this. She has recurring fevers and dizziness, to the point where she's apparently missed some of the outdoor activities her classmates usually participate in over the years. This is due to the fact that she had a close-call accident that required Hakuya to give up part of his powers to keep her alive.
    • Played for laughs and subverted in the manga, as Benio gets sick once (out of Kobeni and Hakuya's relationship upgrade), warranting the worry of everyone that knows her, even speculating that the world might be coming to an end; it's stated that she's so incredibly healthy that she once brushed away a food poisoning that landed her whole class sick in bed.
  • Imagine Spot: Konoha has a few in episode 7, usually related to Benio.
  • Improbable Age: Mashiro seems much younger than her brother and Kobeni, yet is in the same grade as they are. It is brought up in episode 7 between Konoha and Niko, but due to some Applied Phlebotinum applied with Mashiro, the latter forgets about it. Konoha hasn't however, due to being suspected of being a Youkai when Mashiro asks her if she's from the country like them.
  • I'm Taking Her Home with Me!: Well, Benio would, if Mashiro wasn't already living with them. However, she does constantly try to smother Mashiro at school.
  • In a Single Bound: Shirayuki's default mode of transport. Benio even wonders why Shirayuki would even bother taking a train if she can move that fast, but Mashiro mentions she likes riding in things. Later on, Mashiro demonstrates she's capable of it too.
  • Innocent Cohabitation: Hakuya and Mashiro more or less move into Kobeni's house. While this makes sense as Hakuya's technically Kobeni's fiancee, Kobeni is rightfully worried of the misunderstandings that general knowledge of this would cause... which is exactly what happens at the end of the second episode.
  • Insane Troll Logic:
    • Benio uses this a couple of times in episode 8, wondering what secret Kobeni is keeping from her. At one point she wonders if the secret is that Kobeni is secretly a boy, remembers her breasts, and concludes she's actually a hermaphrodite. Later she mentions something about having awakened her seventh sense. Nadeshiko makes some Deadpan Snarker replies to her to try and get her back to reality.
    • Benio again in episode 10. She suddenly disapproves of Kobeni and Hakuya's relationship after Mashiro says they're in a "lovey-dovey phase". She says that she won't go so far as to not allow the engagement, but doesn't like it. She then immediately adds that she considers Mashiro a little sister and promptly leaves the room. While Mashiro brushes it off, Hakuya goes Blue with Shock trying to comprehend what she just said.
  • Insecure Love Interest: Kobeni falls into this in episode 9. Konoha suggesting that Hakuya marry her instead of the former hits her pretty hard. When they talk privately about it, the latter suggests their Arranged Marriage isn't fair to him, causing Kobeni to shed some tears at the thought of losing him.
  • Instant Bandages: Hakuya sports one after he braves the crowd of people getting the daily special at the grocery store in episode 3.
  • It's All My Fault:
    • Benio is still privately beating herself up over Kobeni's accident, as it would have never happened in the first place had she not selfishly wanted to stay and play with her friends rather than join her grandfather on his trip, and instead suggested that Kobeni accompany him instead.
    • Hakuya feels like this as well, though in his case he feels guilty for not being able to stop the accident from happening.
  • Large Ham: Benio almost all the time.
  • Lethal Chef: Apparently Benio's only failing is that she can't cook to save her life as evidenced by the... purple miasma-spewing thing she presented to Hakuya and Mashiro. The next day:
    Mashiro: If you're breakfast were censored, you would be lifeless too.
  • Lightning Glare: Mashiro and Konoha do this in episode 8 while taking a short breather from racing to the rooftop.
  • Locked Out of the Loop:
    • None of the students at school know about Mashiro and Hakuya being Youkai. All they know is that the two are distant relatives of Benio and Kobeni.
    • Played for Laughs in episode 8 when Benio asks Kobeni what secret she was keeping. The latter doesn't tell her, causing her to think about it excessively at school the next day.
  • Love Epiphany:
    • Konoha seems to develop some feelings for Hakuya at the end of episode 7. When she suspects that Mashiro may also be a Youkai based on their conversation earlier, she then thinks of him when she recalls another conversation in the episode with him.
    • Episode 9 is more or less this for Kobeni. After hearing Konoha's marriage proposal, Kobeni is downright miserable. She feels even worse when Hakuya lies to Niko to cover up their engagement. Kobeni even starts to realize if she feels bad about lying of their engagement, she has feelings for him. Later when Konoha asks Kobeni's opinion on the engagement, Kobeni starts crying when Konoha says it makes more sense for two Youkai to get married.
  • Love Triangle: One forms at the end of episode 8. After Konoha proposes marriage to Hakuya, all while Kobeni is rounding the corner and overhears it.
  • Luminescent Blush: Kobeni when she realizes she's more or less in love with Hakuya.
  • Male Gaze: Used on Kobeni quite often in the anime.
  • Meganekko: Benio while in Student Council President mode. Also Kobeni's best friend and classmate Mayura.
  • Mum Looks Like a Sister: Hakuya and Mashiro's mother, who looks like she's in her mid-20's at most and even then she is almost as tiny as Mashiro.
  • My Greatest Failure: Hakuya still feels bad about not being able to save Kobeni from falling off the cliff and getting hurt when they were younger. So when it happens again in episode 12, he rushes to save her this time around.
  • My Significance Sense Is Tingling: Apparently Benio can sense whenever a romcom-esque scene is taking place between Kobeni and Hakuya.
  • My Sister Is Off-Limits!: In episode 9, after Mashiro suggests that Kobeni and Hakuya have reached the "lovey-dovey" stage in their relationship, Benio watches silently in the background while a dark aura grows over her. Shortly afterwards she bumps into Hakuya hard enough to knock him down, then claims he was so big she didn't see him, while having the same dark aura around her. Somehow she doesn't seem to like the idea that the two have gone up a level as Mashiro mentioned.
  • New Transfer Student: Hakuya and Mashiro, to Kobeni's class. While Hakuya's expected given they're the same age, Kobeni is boggled at how Mashiro, who is by all accounts a grade schooler, is able to do so too.
  • Nice Job Breaking It, Hero!:
    • When Shirayuki visits Kobeni's house in episode 5, she starts to mention some unusual things to the latter. Mashiro tries to stop her, but she continues until she mentions they're Youkai not human. Both Mashiro and Hakuya have an Oh, Crap! look on their face. Their mother joins in on it after Mashiro tells her they haven't revealed those things to Kobeni yet.
    • Mashiro openly brags to Konoha about Kobeni and Hakuya's engagement in episode 9, after being asked not to. She later tries to fix the problem by bribing Konoha into silence by taking pictures of Benio. But that causes its own problems with Benio thinking Mashiro secretly likes her.
    • Mashiro again causes some trouble by accident in episode 11, when she hops from rooftop to rooftop in order to get home quickly. Unfortunately Niko was out at the time and catches a glimpse of her on the roof, and gets obsessed about that.
  • Noblewoman's Laugh:
    • Benio does one in episode 3 when bragging about Kobeni to Mashiro. The latter really doesn't care and already knows Kobeni is good at those things such as cooking, and leads her to doing her Angry Dance in the next scene.
    • Konoha has an Imagine Spot where Kobeni does this in episode 8.
  • "No. Just... No" Reaction: Mashiro gets Dull Eyes of Unhappiness and Hakuya goes Blue with Shock at Konoha accusing them of trying to take Benio.
    • Mashiro also starts crying and Hakuya is facepalming.
  • No Sense of Direction: The Mitsumine matriarch is partly this, and partly Attention Deficit... Ooh, Shiny!, as she takes half an episode to find her way to Kobeni's family's house, and only because Kobeni ran into her.
  • No Sense of Personal Space: Benio gets a little too close to Nadeshiko in episode 10 when stating that any mention of Kobeni in a newspaper would be bad, while displaying some Yandere eyes.
  • Not Cheating Unless You Get Caught: Mashiro cheats on a test using magic in episode 7, just enough to not have to do a makeup test like several others including her brother. When Kobeni asks Hakuya if he could do the same thing, he confirms it, but says he refuses to cheat.
  • Oh, Crap!:
    • Hakuya and Mashiro in episode 5, after their mother spills a secret they didn't tell Kobeni or Benio yet. They are Youkai, or supernatural beings, and Kobeni survived a fatal injury when she was younger because Hakuya gave her half of his power.
    • Mashiro develops this look in episode 11 after Niko accidentally spots her jumping from rooftop to rooftop to get home quickly.
  • Older Than They Look: Episode 5 introduces Hakuya and Mashiro's mother Shirayuki, who can be mistaken for her daughter's elder sister.
  • Our Cryptids Are More Mysterious: Cryptids are part of its main cast (Hakuya, Mashiro, their mother Shirayuki and a few more), though while they are called many names, including "demons", "Youkai" and the like, they look and mostly behave like ordinary humans. Mashiro is also a fan of cryptids and collects figurines; one of the show's Running Gags is that she somehow always ends up with lots of Nessies, but not much else.
  • Overshadowed by Awesome: As Mayura and, later on, Mashiro correctly observe, Kobeni's actually above average in a lot of things: in looks, academic ability, and cooking. It's just that her sister Benio's achievements at school and with the local community draw away any attention that might have been sent Kobeni's way.
  • Peek-a-Bangs: Hakuya's hair covers one of his eyes. Justified in that he has a scar and the eye that is covered is nearly blind.
  • Perfectly Arranged Marriage: Much to the ire of Benio, Hakuya and Kobeni are practically made for each other.
  • Playing a Tree: Hakuya in the ending credits.
  • Plot-Based Voice Cancellation: One occurs during episode 8, when Konoha and Mashiro are both on the school rooftop. The wind is blowing rather hard, so not only are they both cold, but neither girls can hear the other.
  • The Quiet One: Hakuya rarely speaks, if at all, which makes him seem like The Stoic to anyone outside of Kobeni's family.
  • Relationship Upgrade: While they were technically already engaged, in episode 9 Mashiro suggests that they've reached the "lovey-dovey" phase of their relationship where both of them like each other. Hakuya wonders what that means, while Benio doesn't seem to take that announcement too well.
  • Repeat Cut: Used on Benio in episode 8 after Kobeni claims Mashiro and Konoha being seen together has nothing to do with her. She turns gray from this, and Kobeni's line is repeated a few times, and with one of the instances having her line slowed down.
  • Replacement Goldfish: Benio tries turning Mashiro into one to replace Kobeni as her little sister. The latter isn't too pleased with it.
  • Right Behind Me: In episode 10, Kobeni gives Hakuya a matching handkerchief. She tells him to keep it a secret from her sister, who then just coincidentally happens to be right behind her at the time.
  • Running Gag:
    • Almost every single time Mashiro buys collectibles, she overwhelmingly gets Nessie toys.
    • Whenever Hakuya is working on a model house, Mashiro inevitably causes it to fall apart, either because she slammed the door nearby, or runs into him.
    • Kobeni calling Nadeshiko over her failed sisterly plans, who just hangs up on her.
  • Scars Are Forever:
    • Kobeni's hiding a large scar that stretches from her right side to the middle of her abdomen, a reminder of the accident she and Hakuya experienced.
    • Episode 11 reveals that Hakuya also has a scar on the right side of his face, hidden away by his Peek-a-Bangs. Although he tells her not to worry about it, Kobeni still feels bad and responsible for it.
  • Scary Shiny Glasses: Benio displays this occasionally when wearing her glasses.
  • School Idol: Benio, so much. Kobeni might have also become this apparently, had her sister not been around to grab most of the attention.
  • School Newspaper Newshound: Niko, who really wants to find a big scoop.
  • Secret Keeper:
    • Kobeni tells Hakuya not to reveal their engagement at school.
    • Hakuya tells Mashiro not to tell Kobeni about their secret. Then in episode 5, their mother accidentally reveals it, that they're Youkai, supernatural beings native to Japanese folklore.
    • After accidentally blurting that secret out, Shirayuki asks Benio to keep it secret, which she promises to.
    • It turns out that Kobeni and Benio's mom was in on the secret the whole time, though in her case it's because she's grateful for what Hakuya did to save Kobeni's life.
    • In episode 9, Kobeni asks Konoha to keep her engagement to Hakuya secret after Mashiro accidentally tells her about it. Konoha uses this against her, stating that if they're just simply in an Arranged Marriage, it's unfair to Hakuya due to the notion that he's being forced into it. Kobeni starts crying when she hears that.
    • Konoha eventually reveals to Niko that she's a supernatural being.
  • Serious Business: Mashiro develops a sort of horrified fascination in regards to aliens, unidentified mystery animals (UMAs), ghosts, and so on, constantly worried they're coming after her. She buys a bunch of UMA collectibles in episode 6 in an attempt to collect all the figures. Unfortunately the one she wants never seems to appear, although she gets a lot of Nessie figures, which drives her a little crazy. Benio tries to buy some for her as well, but buys the wrong productnote . Her fears are kind of ironic when you take into account that Mashiro is a Youkai.
  • Short Hair with Tail: Mashiro has this hairstyle, with a seemingly short haircut in front and a ponytail tied back with a bow.
  • Shout-Out:
    • In episode 11, after finishing the movie with the alien in it, Kobeni asks Hakuya if he liked it. He then mentions liking the part with the baseball bat at the end. Mashiro immediately accuses him of having slept through it, as there was no scene like that in this movie.
  • Sick Episode: Kobeni becomes ill in episode 4. Benio says it's partly because Kobeni has never had a strong constitution to begin with, and the shock of the Wham Line in episode 3 probably helped cause the sickness. Episode 5 reveals the cause. Hakuya saved her life by giving half of his powers to her when they were younger. Unfortunately Kobeni's body can't handle the magic too well, so she periodically gets sick.
  • Slasher Smile: Benio has one in an Imagine Spot Mashiro has in episode 11 after imagining/associating her as a criminal.
  • Smarter Than You Look: Hakuya is assumed to be fairly dim early on because he has a tendency to zone out, but when the first test results come around he gets the top scores in the class.
  • Stealth Hi/Bye: Several characters have a tendency to do this. Benio uses this by far the most out of all of them however, usually whenever anyone mentions her name in passing.
  • Straight Man: Nadeshiko, Benio's vice president. She will often smack Benio if the latter gets out of line around Mashiro. And since she's not trying to smother Mashiro, the latter trusts her more than Benio.
  • Strong Family Resemblance: Mashiro looks a lot like her mother Shirayuki.
  • Student Council President: Benio is this, much to Mashiro's disbelief.
  • Super-Deformed: The main characters during much of the ending, especially Mashiro.
  • Super Speed:
    • Hakuya does this in episode 4 after thinking Kobeni is angry with him due to her childhood injury. Mashiro tries to explain that the unusually fast speed is just typical for them due to running around in the mountains back home. But the look on her face as she explains it seems like she's hiding more explanation from them. Episode 5 reveals that Hakuya, Mashiro, and their mother Shirayuki are Youkai, and Hakuya can turn into a dog. So Mashiro wasn't exactly lying, but she left that part out probably because it would have sounded unbelievable to Kobeni and Benio.
    • In the first OVA, Mashiro runs away from the group after being spooked by a crow while searching for UMA near a hot springs inn they're staying at. Benio chases after her, and initially falls behind. However, as she worries that she'll lose sight of Mashiro, she suddenly moves as fast and catches up to the latter, and keeps up with her entirely. Hilariously they make the paper as an UMA report in the paper the next day says a witness spotted two beings moving at incredible speeds the night before.
  • Supreme Chef: Kobeni is very good at cooking, to the point where she's virtually taken over that particular duty at home.
  • Suspiciously Specific Denial:
    • Mashiro tends to do this when Kobeni asks her things like why such a young girl is in the same grade as her. The latter thinks the former must be using Screw the Rules, I Have Connections!, which the former seems too eager to agree with, but doesn't reveal why she's able to get certain things done. Then in episode 5, Shirayuki, Mashiro and Hakuya's mother, gives their secret away, that they're actually Youkai. She has a slight Oh, Crap! look once she realizes neither one of her kids told the Yonomori sisters about this yet.
    • In episode 8, Benio attempts to walk away from Nadeshiko and shirk her duties. After the latter catches her trying to sneak away, Benio claims she totally wasn't going to spy on Konoha and Mashiro up on the roof.
    • In episode 9, after Kobeni was caught listening to Konoha's marriage proposal to Hakuya. She says she didn't hear anything, especially anything about a marriage proposal
  • Sustained Misunderstanding:
    • In episode 6, Kobeni has a lot of trouble giving Hakuya the chocolate she made for him for Valentine's day. He overhears some other students talking, and they mention that not getting chocolates from a girl means they hate you. Naturally, he assumes Kobeni must hate him, so he goes home all depressed until Mayura clears up the misunderstanding, and Kobeni nonchalantly gives it to him.
    • Another occurs in episodes 7 & 8 regarding Mashiro and Konoha. Both girls are connected to Benio, but for different reasons, and they get into some Ham-to-Ham Combat arguments regarding it until Mashiro clears up that she wants nothing to do with Benio at all.
    • Then another one pops up in episode 9 regarding Kobeni's engagement to Hakuya. When Niko presses info for it, both of them deny it, causing her to tell Konoha about it. This leads her to think that the two are (correctly) in an Arranged Marriage, and that if that's the case, they could break up and then she could snag Hakuya for herself.
    • Mashiro does this towards Benio in episode 9 with the former secretly taking pictures of the latter, mostly to use as a bribe for Konoha. However, Benio catches on to it, and it only further reinforces the notion that Mashiro does secretly like her despite acting like she doesn't.
    • In episode 11, Konoha states that it's not like she was in love with Hakuya or anything like that to him, after seeing him with Kobeni at school.
    • Oddly enough, the alien in the movie in episode 11 also uses this trope as well in a similar fashion to the way Konoha did earlier.
  • Sweet Tooth: Mashiro has one for Western sweets. Benio picks up on this immediately, and uses it as bait to get Mashiro to spend time with her.
  • Taken for Granite:
    • Happens to Kobeni after finding out the lady she was guiding was Mashiro and Hakuya's mother in episode 5.
    • Benio suffers one a few moments later after her misconception of Shirayuki and Mashiro of being fairies literally shatters by the latter revealing Hakuya doesn't fit the description she just gave.
    • Benio develops this look after Kobeni tells her that Mashiro and Konoha walking around together has nothing to do with her in episode 8.
  • Tempting Fate: In episode 11, Mashiro heads home after having bought a lot more collectibles. However, she doesn't want to walk the entire way, and reasons that because it's evening now, she can probably jump on rooftops to get home quickly without anyone seeing her. Unfortunately she does get spotted, and is seen by probably the worst possible person, Niko, who then obsesses about it and plans to write a newspaper article about it. While it seems Niko didn't spot who was doing that jumping, she still believes she saw something, causing Hakuya to scold Mashiro later on.
  • Thanks for the Mammary: Shirayuki does this to Kobeni in episode 5.
  • Tsundere: Benio thinks Mashiro acts this way towards her. The latter seems truly disgusted with the former's actions, but then does things in episode 9 that makes Benio think Mashiro is exhibiting this behavior towards her.
  • Undead Tax Exemption: While Hakuya transferring to Kobeni's school is plausible enough due to being around the same age, Mashiro also attends the same school and even classroom with them despite being a few years younger. Kobeni does wonder how the latter got in, and it gets discussed in episode 6. However, said explanationnote  would be a bit hard to pass off in a school where they have records of students versus a big crowd at a mall or shopping center. Even later, Kobeni is still not convinced so she brings Mashiro to admit that the latter used magic to change the perception of the people around her to appear to them simply as short, rather than actually younger.
  • Valentine's Day Episodes: Episode 6.
  • Wacky Marriage Proposal: Konoha to Hakuya at the end of episode 8, simply because they're both Youkai.
  • Weight Woe: Kobeni is rather insecure about her figure and afraid of getting fat. And when Mayura mentions all that extra fat seems to go to her breasts, Mashiro gets a little jealous about it.
  • Wham Episode:
    • At the end of episode 3, Benio tells Kobeni more about what happened between her and Hakuya. While she didn't hear all the details, Benio tells her sister that she used to play with Hakuya when they were younger, and when she fell down a cliff, he tried to save her but ended up going down as well. However, his action ended up saving her, and Kobeni starts to piece together things said earlier to figure out what happened.
    • Episode 5: Hakuya and Mashiro's mother, Shirayuki, pays Kobeni's home a visit, and in the process reveals her family's biggest secret: that they're not human, and what's more, Hakuya gave up half of his power to save Kobeni's life. In fact, it's because of this power that Kobeni has periodically gotten sick — it's because, as she's a normal human, her body can't handle it.
    • In episode 8, Konoha delivers a Wham Line to Hakuya. She reveals that her mother told her to snag a male Youkai for herself if she ever ran into one, so she proposes to him, with Kobeni within earshot.
    • In episode 11, Kobeni finds out that Hakuya has a scar on the right side of his face, likely due to the accident she suffered with him years earlier. While both he and Mashiro tell her not to worry abou it, she still feels responsible for it. Then at the end of the episode, they receive another message from home, and are both gone by the next morning.
  • What the Hell, Hero?:
    • Konoha accidentally finds herself in these situations a lot, and usually ends up thinking she'll look like the bad guy when she ends up making Mashiro and Kobeni cry with her statements.
    • Mashiro chides Hakuya in episode 12 for not giving a clear email stating that they would be back to Kobeni's house. As a result, Kobeni thought they abandoned her and left due to leaving suddenly and taking all their clothing and textbooks with them. Mashiro explains they brought their clothing home to exchange it for summer attire, and that they'd be using new books for the next school term, so leaving the old ones at her house wouldn't of made much sense.
  • When He Smiles: As Kobeni finds out, Hakuya's actually quite dreamy when he manages to smile.
  • White Glove Test: When shown her new room in the first episode, Mashiro does this to a windowsill, and is disappointed to find no dust. Clearly she was looking forward to finding something to complain about. Benio notices this and smugly comments on it.
  • Yamato Nadeshiko: Shirayuki, Mashiro and Hakuya's mother, seems to emanate this. Kobeni, when she first sees her, even feels a little jealous that the kimono the former is wearing looks incredible on her.
  • Yandere: When Mashiro states Kobeni is in love with Hakuya. Benio becomes this, bumping into Hakuya out of anger. At the beginning of episode 10, she certainly has that look in her eyes for one scene. And she develops that look again in episode 11 after hearing that the Kobeni, Mashiro, and Hakuya are going out without her, so she steadfastly refuses to allow them to, before Nadeshiko drags her away for a charity event.
  • Yonkoma
  • You Gotta Have Blue Hair: The characters run the gamut of improbable hair colors. For example Kobeni has pink hair, while her sister Benio has orange hair.
  • Youkai:
    • What the Mitsumine family seem to be. In the words of Shirayuki, Hakuya and Mashiro's mother: "Well, humans call us all sorts of things. Demons, monsters, ogres, spirits..." While Kobeni is understandably shocked by this revelation, Benio for some odd reason seems perfectly okay with it.
    • Konoha is suspected of being one too by Mashiro in episode 7, due to the way the latter says she smells. Konoha's Suspiciously Specific Denial of it doesn't help her case either. It gets confirmed in episode 8.

Alternative Title(s): Mikakunin De Shinkoukei


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