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Manga / The Demon Girl Next Door

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Yuko Yoshida is an ordinary high school girl, other than the fact that her family is extremely poor. That is, until she woke up one day and found that horns and a tail had grown on her overnight! Only at this point does her mother reveal the Yoshida household comes from a line of demons, but successive defeats at the hands of the Light Clan over the past centuries have made them lose their demonic appearance and powers, while cursing them to subsist on 40,000 yen per month for a family of four. Now that Yuko has regained some of her demonic features, her family wants her to defeat their mortal enemies, manifested as Magical Girls, and break the family curse.

Years of poverty have taken their toll, though. Due to malnutrition and childhood illness, Yuko is rather short for her age and is physically weak. On the other hand, Momo Chiyoda, the local Magical Girl, is super-humanly strong and fast, and well-versed in combat. How will the situation turn out for Yuko and Momo?


The Demon Girl Next Door (Machikado Mazoku) is a yonkoma manga by Izumo Ito, serialized in Manga Time Kirara Caret. It received an Animated Adaptation by JC Staff in July 2019. Outside of Asia, the animated version is licensed by Sentai Filmworks and streamed by its streaming service HiDive. Seven Seas Entertainment announced in July 2020 that they had licensed the manga for English release starting January 2021.


The Demon Girl Next Door contains examples of:

  • Abandoned Hospital Awakening: This along with a Zombie Apocalypse is the opener of volume 5, though it's just one of Lilith's terrible fictional drama creations.
  • Abandoned Warehouse: The abandoned factory that Momo used to train Yuko in Chapter 6 is eventually revealed to have been involved in several important events in the past: First with Sakura's confrontation of Ugallu, then whatever happened that eventually caused two people to be sealed.
  • Achievements in Ignorance: The less Yuko knows about the workings of her family's Ancestral Weapon the Whatever Staff, the more she can do with it, only being limited by her lack of imagination and magical power.
  • Acme Products: Everything is Kirara-branded: from alcopop to hotplates to video games.
  • Act of True Love:
    • When Yuko turns her Dream Walker powers on herself to try and recall what happened to her 10 years earlier, when she was an Ill Girl in the hospital dying from the Light Clan's curse on her family, she becomes trapped in a nightmare of her repressed memories and unable to wake up, being attacked by syringes and IV drips in a labyrinthine hospital with no exit. Lilith is unable to pull Yuko out of it either, as being sealed has dramatically curtailed her powers. Momo is unwilling to leave Yuko in such a state, and she gets desperate: she first outright offers to slit her wrist and give Lilith her blood to break the seal if it'll give Lilith the ability to save Yuko (it wouldn't be enough), then goes through with (temporarily) becoming Yuko's vassal to make them family, as only another family member can enter a Dream Walker's dreams, so Momo can go into Yuko's nightmare and pull her out.
    • Yuko herself tries to do it too. After learning that Sakura's core is within her and that it is the only thing keeping her alive against a double dose of the Light Clan's curse, all she can think about at first is getting it out to restore Sakura to make Momo happy. Momo tells her to not even think about it—Yuko is now both of the most important people in her life and she won't sacrifice one for the other.
    • Lilith gets her turn at it as well in Chapter 58. When Yuko's spirit is being held captive by a mizuchi in its sealed space, Lilith is prepared to sacrifice herself to save her descendant, since she's family, her only real friend, and the only person who respects her. Lilith asks Momo to destroy her statue and the temporary vessel she's in, which will leave her as an unbound spirit unable to remain in the physical world, but also would release her from her seal and restore all her powers. That would give her a moment to go into the mizuchi's sealed space, pull Yuko's soul out, and take her place. The mizuchi doesn't exactly like the idea of being stuck with Lilith for eternity, though, so when it hears what she's planning, it instead curses her with immortality and commands her to clean up garbage along the Tama River every day forever as its price for giving Yuko back.
  • Adam Smith Hates Your Guts: In Chapter 50, it is revealed that Sion effectively price-gouged Momo for the "Corruption Stabilizer" potion—Sion asked Momo to pay 7,289,590 yen for it, knowing well that she is not willing to completely fall to the Dark side and she can afford that much.
  • Adaptational Early Appearance: Two major characters and a location that don't get introduced until the third volume of the manga get very brief appearances in the final episode of the Animated Adaptation (which adapts the first two volumes), possibly as a sequel tease.
  • Apology Gift: Yuko sends Momo an indirectly-phrased challenge letter calling her out for a duel, which Momo interpreted as asking her to go out and have fun for the afternoon. When Momo shows up in a breezy summer dress, Yuko grudgingly apologizes for the misunderstanding, goes out shopping with Momo, and buys her a pair of black hairclips. Yuko then puts the hairclips on Momo while gloating that she's finally managed to turn some small part of her to darkness. Afterwards, Momo never wears her old iconic pink hairclips again in favor of Yuko's gift.
  • A Dog Named "Dog": A woman who lives down the street from Yuko has a dog named "Inu" ("dog" in Japanese). It shows up in every episode of the Animated Adaptation, usually while being taken for a walk.
  • Bargain with Heaven: All Magical Girls' terms of employment work like this. They contract with their Navigators, and the number of demons they subjugate are converted into points which determines the power of wish-granting they can obtain at retirement.
  • Big Red Devil: It is implied that demons originally looked like this, but centuries of having their powers incrementally sealed away by the Light Clan caused them to take a more humanoid appearance. Yuko's sudden growth of horns and tail is seen as some restoration of her demonic powers.
  • Bland-Name Product:
    • In chapter 6, Momo asked Yuko to shout "whatever you desire" in the same way one calls out your attacks. Yuko yelled out names suspiciously similar to actual restaurant chains: Royal Hosp (Royal Host), Skylarc (Skylark)note , Synned (reversing Denny's), and Bamiyan.
    • In chapter 19 (and its anime equivalent episode 9), Lilith suggests Yuko bringing the former's statue to the latter's test so that Lilith can "stream" Yuko answers to a history test. When Lilith says this, the logo "Gozensonote  Answers" appears above her, in a form parodying Yahoo! Answers.
  • Blood Magic: Magical power can be stolen from a Magical Girl through their blood. It's not the bleeding that causes the loss of power, it's the power being absorbed out of that blood by something dark-aligned. Even a single drop of blood in the wrong hands is dangerous for them.
  • Breaking the Fourth Wall:
    • In the Animated Adaptation, not only is the fourth wall broken in the conventional sense a few times by Yuko and Lilith, other characters will occasionally rip it down and use it as a prop.
    • The manga is a bit more restrained about fourth wall abuse, but two instances of note are Yuko asking the reader if the bento lunch she just made looks okay, and Lilith putting "a kill counter for the readers" in the lower right of each panel while she's having Yuko do some combat training in her sealed space.
  • Breather Episode: Chapter 40. This is invoked in-universe, as Anri, after reviewing Yuko's summer-vacation journal, opined Yuko's summer was far too eventful for a 15-year-old girl, and had Yuko do something more like a normal summer vacation on her last free day of it.
  • But Not Too Foreign: Yuko and Ryoko are half Mesopotamian (the specific modern country isn't specified) on their father's side.
  • Child Soldier: Many Magical Girls in this series started fighting long before the usual for this genre. For example, both Momo and Mikan starting fighting before they go to school.
  • Chekhov's Armoury: Nothing that is given any amount of attention is ever just used once and forgotten.
    • Lampshaded when everyone needs to conduct a ritual within one night. Sion attempts to explain that it'd be impossible within that time frame because the required ingredients aren't on hand and are difficult to acquire on such short notice, only for Yuko to reveal that either she knows someone who can get it for them or has it already.
      Sion: ...You really are interesting Shamiko-chan! I'm so glad I stalk you!
  • Crazy Enough to Work: The way Momo prevents herself from being completely "corrupted" is by asking Mikan to shoot her with the latter's Finishing Move. This way she can replenish the Light element in her body.
  • Curse: There's two curses afflicting the Yoshida family, the ancient one, and a newer one:
    • The ancient curse on the Dark Clan in general, which removes demonic indicators and powers.
    • Sakura's curse on the Yoshida family, which causes their poverty. But... it isn't technically a curse, but a sacrifice. She meddled in the ancient curse afflicting the Yoshida family in an effort to save Yuko's life due to a double dose of the ancient curse, at Joshua's behest, sacrificing their family's luck and fortune for Yuko's health—and yet even this wasn't enough.
  • Cute Little Fangs: Yuko and Lilith have them, likely due to their demonic blood.
  • Deal with the Devil: Yuko asks Momo to become her vassal, mostly to keep Momo from abandoning her to find a new lead on her missing sister, remarking that with her sullen personality, penchant for thinking of evil ways to use powers, and poor eating habits, she'd make a better demon anyway, and as a demon the barriers around town would no longer hinder her search. Momo is strongly tempted to do it, but declines with her own counteroffer upon a last-second realization that she'd lose most of her strength because Yuko would become her power source and...she doesn't have much of it to give. Still, Momo promises to accept her offer when Yuko can defeat her in a duel, expecting she'll never do so but really hoping she will someday.
  • Defeat by Modesty: A self-inflicted example, after learning how to completely control her transformation power, when Yuko tries to change her Crisis Management outfit to something more normal. First she tries to make it a ski outfit that fully covers her, and collapses because she's not revealing any skin and this made her too weak to stand. Then she tries to make her transformation into a track outfit, and in this form she can't control her movements. Lilith finally explains that Yuko's Crisis Management form isn't just a "half-naked cosplay outfit;" a transformation isn't a change of clothes, it's a layer of magic that reinforces her existence and reflects her idea of herself at her strongest, so trying to transform into something that doesn't "match her soul" won't work right without changing her self-image along with it. In the end, Yuko just stuck with what worked and resigned herself to being a Reluctant Fanservice Girl.
  • "Do It Yourself" Theme Tune: The opening is done by Yuko and Momo's voice actresses. They also do the credits song, along with Mikan and Lilith's voice actresses.
  • Don't Try This at Home: In Chapter 13 (and its equivalent Episode 6), Yuko ate Momo's grotesque-looking attempt at cooking a hamburger steak without any consideration that it might be less than edible, since Momo had intended to make it for her. After Yuko mentions how she defines the word edible (anything that doesn't trigger a gag reflex), a warning message appears:
    Warning: This girl has undergone special training in this field as part of her family's circumstances. Please be very careful to confirm whether food prepared and left out during the summer is safe to eat.
  • Edible Theme Naming: All the Magical Girls in this series have names taken from a fruit: Momo (peach), Mikan (orange), Sakura (cherry), and Honyu (Alternate Character Reading of the Jonathan apple).
  • Every Episode Ending: Every manga chapter ends with the Narrator cheering Yuko up. This is carried to the anime as well.
  • Familiar: Magical Girls get animal navigators that act as their familiars. Momo has her cat Metako (who originally belonged to Sakura), and Mikan has a lethally toxic golden dart frog named Michael. Honyu has a lionhead goldfish named Zikiel.
  • Fantastic Fragility: Three ways have been mentioned to defeat the Perception Filter effects of the barriers. One, directly attacking the source of the barrier with magic from beyond its effect range can temporarily disable it. Two, someone not affected by it can just physically convey a Magical Girl into a protected place. Three, if someone under a barrier's protection invites someone else in, it stops working on the invited individual permanently. A barrier that has been overcome will begin to decay if someone it's supposed to be keeping out finds a way in, and spends a prolonged time in the area it should be protecting. When Yuko invited Momo to come visit her apartment, Momo was immediately able to follow her home (invoking the third method). The barrier on the Yoshidas' apartment door had seriously degraded by about 60% after ten years because of Yuko carrying around Sakura's core (invoking the second method), and when Momo and Mikan moved into the adjacent apartments and became regular visitors, the remaining 40% or so of the barrier on their door had almost entirely decayed away after about three months.
  • Fantastically Indifferent: Sakura set a series of Perception Filter barriers across Tama to prevent Magical Girls from interacting with demons. This means in Tama, they co-exist with muggles, and since muggles are not affected by the said barriers, they have been interacting with the demons so frequently that they see nothing unusual in Yuko gaining horns and tail overnight, or a talking statue claiming itself to be Lilith.
  • The Farmer and the Viper: Momo decides to use some of her already-diminished magical power to give her mortal enemy Lilith a controllable body just to make her happy. How does Lilith repay such a kind act? By immediately plotting to force Momo to make more. Unfortunately for her, Momo was clever enough to put in a back-door.
  • Fictional Counterpart: In chapter 55 Yuko acquires a smartphone from a mobile phone retailer called du, a parody of the real-life Japanese mobile provider au. The logos are even the same aside from the extra stroke to make the A into a D.
  • Food as Bribe: Momo does it to Yuko several times.
  • Friendly Enemy: Yuko and Momo are technically on opposing sides, but they spend more time helping one another than they do actually fighting.
  • "Friends" Rent Control: Double subverted; the Yoshidas live in a very old, decrepit apartment building that's in such bad shape, nobody else wants to live there, and the other five units are empty (at first). They're also only paying 150 yen a month for rent, though it's implied they're getting a very steep discount for being part of the Dark Clan.
  • Girls Are Really Scared of Horror Movies: Zigzagged. Mikan drags Yuko out to a horror movie; she wants to practice subjecting herself to something scary as training to keep her feelings in check, and doesn't want to go by herself. Mikan is a nervous wreck for half the movie...and unconscious for the other half. Yuko enjoys the movie, roots for the zombies, and cries at the end when the heroes win.
    Mikan: Wait, why are you crying? What's wrong? Did you hurt yourself? I don't think it's possible for my curse to attack your stomach or anything!
    Yuko: That's not it... I'm just so touched... All of the zombies and ghosts, even though their guts were hanging out, they really tried their hardest to overcome the ridiculous strength of the heroes...
    Mikan: That was the side you were sympathizing with?!
  • Go Through Me: When Yuko is mistakenly convinced that Momo is coming to kill her mother, she stands in the way of the oncoming pink juggernaut and refuses to let Momo into her apartment despite knowing she can't really do anything to stop her. Although the clever bit of wordplaynote  that leads up to this moment defuses the scene's tension, Yuko shows some true courage for the first time in the series, standing up to someone who had so far alternately just vexed and intimidated her.
    Yuko: I don't care if she keeps secrets, and no matter how illogical it may be, I want to protect my mom, Ryo, and this house that my father will someday come back to! Magical Girl, Momo Chiyoda! If you want to get into this house, then you're going to have to defeat me to do it!
  • Hero Insurance: Subverted. Sakura paid off the Hinatsuki family 11 years ago for her destroying their family factory in the course of fighting Ugallu by buying the property outright. The Hinatsukis used that money to move westwards and re-establish their business there.
  • Honey Trap: Lilith recommends "seduce Momo" as a valid plan of attack, though Yuko modifies that to "ask Momo to become her vassal," which is likely what Lilith was aiming for.
  • Horned Humanoid: Lilith and her descendents become this when their demonic powers manifest.
  • Horny Devils: If the Stripperiffic outfits and Dream Walker powers didn't clue you in, Lilith confirms that she and Yuko are succubi, though they're only horny in the literal sense.
  • Hypocritical Humor: In Chapter 36, Seiko reflected ten years ago, Yuko told her the latter spoke with a cat that entered her room. Shirosawa wondered if that's All Just a Dream, saying it's impossible to have a Talking Animal around. Shirosawa himself is a talking tapir.
  • Istanbul (Not Constantinople): The author just changed the toponym 多摩 (Tama) to the very similar 多魔 (same pronunciation). This doesn't only apply to the city where the cast lives, but also Tama River, the river that flows through the city, and Okutama, a place Yuko ended up during the second episode.
  • Light Is Not Good: The "war" between the Light and Dark clans sounds more like a one-sided slaughter in the Light's favor, with the Light clan hunting down Dark Clan members just for points. The demons in town have only been kept safe by the barrier.
  • Made of Magic: It's mentioned by Momo, then elaborated upon by Mikan, that the process of becoming a Magical Girl involves having one's body restructured to be primarily made of ether, enhancing their strength and making them able to better use magic. As a consequence, however, if their magical power ever gets too low, the magic holding their body together will fail and they'll dissipate into the air, becoming a disembodied soul.
  • Magical Girl: Momo, and a powerful one at that—at least in a physical sense. Her first appearance in the series involves stopping a truck with one hand to avoid Yuko falling victim to Look Both Ways.
  • Mana: This is an important thing for both Dark and Light clans, as they need it for their superpowers. To take the point home, magical girls are selected for their mana (which is also why they often start quite early), such that navigators and some of the magical girls is able to identify who have the potential to be one.
  • Meaningful Name: The kanji for this series's rendition of Tama, 多魔, means "many demons". As noted in Chapter 48 of the manga, this is probably the only place demons can safely co-exist with others and thus has more of them there.
  • Mascot: Tamasakura is the mascot for the local open-air mall.
  • Mood Whiplash: Happens quite often for a 4-koma, and it's usually a sign that a longer story arc is coming up. For example when Momo finds out that Yuko's father has been sealed by her adoptive sister, which leads to a volume-long search for her, or when Mikan's curse suddenly isn't played for laughs anymore and she falls into depression, prompting Yuko and Momo to directly intervene to address the source.
  • My God, What Have I Done?:
  • Nature Spirit: The Tama River is watched over by a powerful mizuchi that was sealed away 150 years ago within a mountain at the river's source.
  • No Communities Were Harmed:
    • The story is set at the Tokyo suburb of Tama, specifically the Seiseki-Sakuragaoka neighbourhood. The author swapped a kanji for Meaningful Name effect, due to the setting.
    • The anime changed the name of the neighbourhood from Seisekinote -Sakuragaoka to Seiikinote -Sakuragaoka.
  • Now, Let Me Carry You: Yuko has ended up doing this for Momo twice.
    • In the most straightforward sense of the trope, in Chapter 13/Episode 6; when Momo got sick on the way to school, Yuko had to prop her up and help her walk home, then she took care of Momo for several days.
    • In chapter 44, Momo physically manifests as the dark form she took in a dream while saving Yuko from her nightmares, and suffers a severe case of Power Incontinence that drains her mana nearly to the point of dematerializing. Yuko saves Momo from disintegrating to her core, but Momo is still left even weaker than Yuko afterwards. In the following chapter Yuko then has to help Momo get to a magicially-charged spring in the nearby mountains (which Yuko had accidentally been to before when she fell asleep on a train) to recover her mana. She ends up having to get a weak Momo past a bunch of booby traps, and even has to fight a familiar guarding the spring all on her own. Yuko defeats it by crudely copying Mikan's magical crossbow with her Whatever Staff and haphazardly blasting it; this has been the only instance of combat in the entire series.
  • Oh, Crap!: Yuko has this reaction when she sees Mikan for the first time.
  • Opposites Attract: Momo and Yuko could hardly be any more dissimilar. The former is tall, superhumanly strong and fast, intelligent and conniving, a servant of the Light Clan with a dark personality, shoots first and asks questions later, is left-handed, a loner, an orphan who never knew her biological parents, a Lethal Chef, lives in a fancy house, seems to have more than enough money to throw around, and almost never gets sick despite neglecting her health and living on junk food. The latter? Short, pitifully weak, dim-witted and gullible, a literal demon as pure as driven snow who's honest to a fault, wants everyone to get along, is right-handed, has good friends, has two living parents (though one is stuck in a box) and a little sister, is a good cook, lives in a tiny run-down apartment, her family is desperately poor, was deathly ill until she sprouted horns and a tail, and perhaps unironically is on the school's health and safety commission. And that's still not all. It's these differences that create their mutual appeal, though—where one lacks, the other excels. They complete each other.
  • Perception Filter: Sakura set barriers across Tama to prevent members of light and dark clans from interacting, to the point that Yuko is the only demon Momo has ever met in Tama. There are, however, some exceptions:
    • These barriers are not intended to be used on muggles, to the point that they became Fantastically Indifferent towards cryptids.
    • Yuko can interact with magical girls because Sakura's core resides in her, making her kind-of-sort-of one as well.
  • Perpetual Poverty: As a result of a curse put on the Yoshida household, they have to subsist on 40,000 yen a month. On the day Yuko's mother revealed their demonic origins, they had run out of their rice supply for the month, and miso was intended to be their sole food item for awhile. This is also why Yuko lacks knowledge in many aspects of modern life, such as pre-sliced bread, using computers or smartphones, or going to a movie theater.
  • Pest Episode: In chapter 46, a cockroach shows up in Mikan's apartment which freaks her out. Yuko is accustomed to dealing with vermin and offers to simply catch the roach and toss it out, but Mikan insists she deal with it without touching it. In the end, Momo has Yuko help her with making a simple bug-repelling magical barrier to deal with the roach. Momo has Yuko use her magic to activate it, but Yuko's magic is of such poor quality that it only lasts for several hours, so Momo and Mikan pressure Yuko to make dozens more.
  • Politeness Judo: While trying to invade Momo's subconscious Yuko can't get past a door specially designed to keep out demons. How does Yuko get through? By making a lunch box and politely asking Momo to let her in.
  • Proper Tights with a Skirt: Yuko wears them with her school uniform.
  • Punny Name: The author swapped a kanji from the real-life City of Tama (多摩市) to 多魔市, or "City of many devils / demons."
  • Quirky Town: Because Sakura set a series of Perception Filter barriers across Tama to prevent Magical Girls from interacting with demons, it is the only place in the world where they co-exist with muggles. The fact that muggles are not affected by these barriers means they have been interacting with them so frequently that they see nothing unusual in Yuko gaining horns and tail overnight, or a talking statue claiming itself to be Lilith.
  • Reality Ensues: Yuko's horns cause her a lot of problems. The extra weight on her head puts a huge strain on her neck and shoulder muscles, and they tend to catch on things or get in the way. Yuko eventually buys a torus-shaped pillow to allow her to sleep on her side again by putting her horn through the hole, because when she tries to sleep on her side without it, the pressure caused by the weight of her head upon her horn causes her a lot of pain.
  • Religious and Mythological Theme Naming: Light Clan Navigators Metako, Michael, and Zikiel are named after the angels Metatron, Michael, and Zaphkiel. The Metako Guardian Entity that protects Momo's subconscious outright calls itself a piece of Metatron, so Metako might just be a nickname.
  • Sensible Heroes, Skimpy Villains: When transformed, Magical Girls wear frilly clothes, as per tradition of them, while demons have stripperiffic outfits, and it's explicitly mentioned that skin exposure is essential to their powers.
  • Shout-Out:
    • In episode 2, Anri takes Yuko to the school's weight room for a workout, and asks "How heavy do you want your dumbells?"(seen here)
    • Also in episode 2, Yuko wonders if she can take her funding requests to Shark Tank (the US version of Dragon's Den).
    • In episode 9, the cast watches a documentary from THK.
    • In Chapter 47, Ryoko suggests Yuko morphing the Whatever Staff into the Yitian Sword.
    • The volume 5 preview is based on fellow Kirara manga series School-Live!, complete with an orange zombie dog.
  • Sibling Yin-Yang: Yuko is a bit of an airhead that has no real demonic ambitions beyond breaking the seal on her family's powers (and she hardly even does that). Ryoko is an incredibly intelligent girl who aspires to help her sister conquer the world.
  • Sitcom Arch-Nemesis: Momo and Lilith really don't get along after the latter regains the ability to speak. Their hostility mellows out somewhat after Yuko asks them to try and get along better...and Momo threatens to blackmail Lilith about her fear of the dark if she doesn't behave.
  • Smarter Than You Look:
    • Yuko is surprised to learn Momo is actually a good student instead of just Dumb Muscle.
    • Lilith somehow manages to talk Yuko's teacher into taking the same set of final exams as the rest of the class. She gets the third highest score out of everyone in Yuko and Momo's grade. Apparently she's learned quite a few things over the last 5,000 years.
  • Sugar Bowl: While some strange things seem to have happened in the past, and even though someone will remind you that most Magical Girls are merciless killers or that Demons can become extremely dangerous, all we ever see is a peaceful town full of incredibly nice people. Even the most ambiguous characters are merely mischievous or misguided, and they will always become friendly after their problems are solved.
  • Start My Own: Like Magic of Stella, another Kirara series, Sakuragaoka High School has a rather hands-off attitude on the establishment of clubs, as long as the club's objective can be fulfilled in the entire time the applicant is in school. As a result, the school has clubs for polishing human specimens, drafting anti-zombie manuals, or just playing with cats, while Mikan's proposal of growing tangerines (her namesake) is rejected, since it takes five years for the tree to start bearing fruit.
  • Summoning Ritual: The cause of Mikan's curse; her father summoned a demon to protect his family and business, but did it wrong, and the resulting demon took up residence in Mikan, trying to fulfill its intended purpose by blindly lashing out at everyone around her when it sensed her agitation or distress. Yuko and Momo eventually end her curse; first they dive into Mikan's dreams, where Yuko uses her powers to stabilize the demon's existence. Momo then talks it into being willing to leave, making it possible to repeat the summoning ritual again correctly, but with a narrow window of time to do it. Thanks to a few contrivances, they have most of what they need on hand, and with some help from Yuko's friends and co-workers, they succeed in securing the remaining items needed quickly, summoning the demon out of Mikan and into a vessel in the real world.
  • Take Me Instead: When Yuko has her soul yanked out of her body and held captive by the Tama River's guardian spirit for littering the river, Lilith implores the sealed mizuchi to return her, and when it refuses, she comes up with a plan to rescue Yuko by sacrificing her ties to the material world to escape her seal, then forcing herself into the mizuchi's sealed space to pull Yuko out and take her place, all because Yuko had always treated her with respect and kindness. Rather than be stuck with Lilith, the mizuchi lets Yuko go, but exacts a heavy price from Lilith in return: pick up the equivalent of 12 kilograms of trash from the banks of the Tama River every day forever or die a painful death, and it gives her temporary vessel immortality so she can make good on the "forever" part of the deal.
  • The Only One Allowed to Defeat You: This is the defining basis of Yuko's relationship with Momo. At the beginning, she saw Momo as a genuine adversary, out of the desire to take some of Momo's blood to break the curse on her family. Then she succeeds in getting some of Momo's blood on her ancestor's statue through an old handkerchief, entirely by accident, which does partially break the curse but also weakens Momo quite a bit. Even when they develop a genuine friendship, Yuko is still determined to get the better of Momo to show that she's a Worthy Opponent deserving of respect. She even worries that some other demon is going to beat her to it and take Momo away. It's still the case much later on when they have essentially become sisterly Heterosexual Life-Partners with both of them willing to die for the other. Although Momo eventually admits to liking Yuko, and Yuko's actions show the feeling is mutual, Yuko just can't be honest enough with her feelings to admit it.
    Yuko: Momo has been my mortal enemy ever since the moment I first laid eyes on her. I'll chase her to the ends of the Earth until I can finally claim victory over her!
  • Transformation Is a Free Action: Parodied.
    • Momo's long transformation sequence has a timer to show that it actually takes no more than 0.01 seconds. When she manages to transform in 0.008 seconds, the narrator states that's a new record for her.
    • Yuko's transformation hasn't been officially put to a timer, but in the one instance in the anime where she is shown transforming without the usual Stock Footage Transformation Sequence, the process takes a bit less than one second of in-universe time.
  • Unsuspectingly Soused: When Lilith can communicate with the Yoshida family, Seiko gives her a can of drink to shut her up. Lilith originally thought it was some orange soda... until she gets tipsy. Seiko explains it's actually highball, a Japanese alcopop.
  • Unusually Uninteresting Sight:
    Yuko: I grew horns and have to find and murderize a magical girl to undo the family seal. [...] Isn't everyone too non-chalant about what I'm saying?
    • In Chapter 48, Mikan transfers to Yuko's class, and during the introduction her class teacher mentioned her status as a Magical Girl and her curse. Neither of these elicit any response—her classmates are more interested in her mundane life.
  • Verbal Backspace: Momo admits she gave Yuko her Twitter handle to get to know her better...right before claiming that was just a joke and it's just to keep an eye on her. One look at Momo's face makes it clear that it wasn't a joke.
  • Wham Episode:
    • Chapter 13: Yuko accidentally broke the 40,000-yen-a-month curse by putting Lilith in the same bag as a handkerchief having Momo's blood stains on it. Momo was massively DePowered.
    • Chapter 25: The Yoshida family's previous entanglements with Sakura, as well as the identity and whereabouts of Yuko's father Taro. Yuko has multiple Big-What moments.
    • Chapter 38: The reveal that Sakura fused her core within Yuko to keep the latter alive, and meanwhile Momo becomes Yuko's temporary vassal, thus in a sense falling into darkness, to save Yuko from a nightmare she can't wake from.
  • What Kind of Lame Power Is Heart, Anyway?: What Yuko initially thinks of her Dream Walker power, but after she uses them to get a hostile magical girl and amoral fox girl to drop the Conflict Ball, she comes to the realization that her powers are a lot more dangerous than she realized. Then Yuko realizes that her relationship with Momo may be built on a lie because she's unwittingly brainwashed her in both the literal and figurative sense. Momo reassures her that she'd have come to cherish Yuko anyway, and she's never used her powers for anything but making other people happy, but a seed of doubt has been planted that probably won't be going away soon.
  • What You Are in the Dark: Yuko realizes she could easily take Momo's blood while she's sick, but decides that it'd be wrong to do. She ends up doing it accidentally anyway while treating a wound.
  • Writing for the Trade: It seems like the author clearly knows that every volume contains 13 chapters, so the plot-heavy content is always arranged to come towards the end of the volume—especially on the second to last chapter of each volume (or the 13n-1th chapter), which nearly always contains important plot twists.
  • Yonkoma: Its format.
  • You Didn't Ask: Lico never bothered mentioning the negative side effects of her magical cooking until it made Yuko sick. Even her own boss didn't know.

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