A 1998 {{Shojo}} {{Horror}} manga written by Mizuno Junko. In this dreamy science fiction fantasy, Junko Mizuno illustrates a story full of catfights, alien safari adventures, evil experiments, and a girl who dreams of becoming a pop idol signer. Following the Third World War, humankind left the toxic surface of the Earth and built an underground city to survive. A serious social problem has emerged in this new society: hyperorexia, or severe overeating, a side effect of the "Pure Trance" life-sustaining pill. The story begins in the hospital which has been ruined by a tyrannical director, Keiko Yamazaki...

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!!Tropes in this manga include:

* TheAce: Yuriko.
* ActionGirl: Yuriko, Masako, Yuka and [[spoiler:Seiko]].
* ArtificialHuman: The two assassins.
* AlienAnimals
* AnimalTesting
* AmazingTechnicolorWildlife: According to the notes in the manga these creatures have some strange colors.
* AxCrazy: The Director, on so many levels. Her thoughts on childcare? [[MakesJustAsMuchSenseInContext Turning a pair of twins into earrings]], turning a really pretty girlchild into [[CreepyDoll a stuffed doll]] and turning the last child into [[RobotMaid a cyborg maid.]]
* {{Badass}}: See ActionGirl.
** BadassBookworm: Masako, Kajiwara and Momoyama.
* BadBoss: Keiko mistreats literally everyone around her.
* BigEater: Apparently the whole population of the world by this world.
* BestServedCold
* BewareTheNiceOnes: Nurse Masako.
* BloodyHilarious: YMMV.
* BloodMagic
* BrokenAce: Keiko really is a skilled doctor.
* TheBrute: Kimiko. She's also Keiko's [[TheDragon Dragon.]]
* ChainsawGood: The Director, [[AxCrazy to absolutely nobody's surprise.]]
* [[spoiler:ChekhovsGunman, SpannerInTheWorks: The three pregnant women, Hitomi Yokoyama and Nurse Masako.]]
* ChildHater: See DarkActionGirl.
* ColdBloodedTorture: That eventually ends the life of Nurse Kaori.
* CrapsaccharineWorld: The artwork is extremely adorable but the storyline proves the world pretty much sucks.
* CreepyTwins: The twin nurses Takeko and Umeko but [[AxCrazy Keiko the hospital director from hell]] created them so that's no big surprise. Also Yuki and Miki, but they're the good kind of creepy.
* CuteMonsterGirl, HalfHumanHybrid: Yuka.
* CuteWitch: Yuki and Miki.
* TheCutie: Rika.
* DarkActionGirl: Keiko, Kimiko and the twin nurses.
* DeathByChildbirth: [[spoiler:Rika.]]
* DirtyOldMan: The Mayor.
* DoesNotLikeShoes: The whole gang on the surface world.
* TheDogBitesBack
* DreamSequence: The Director has plenty of these, and they're pretty freaky.
** DreamingOfThingsToCome: And the future doesn't look pretty.
* TheDutifulSon: Sugiura may be a dumbass that the Director has completely kowed but he still sends money to the country for his family.
* EarnYourHappyEnding: For the nurses, Kimiko and the surface girls.
* EverythingTryingToKillYou: When [[spoiler:Kaori, Yuriko, Rika, Miki and Yuki]] escape to the surface, no one expects to see them ever again. [[DangerouslyGenreSavvy Nonetheless,]] Keiko sends assassins anyway.
* {{Fanservice}}
* FoodPills: Since the food production is low, food pills are created as a substitute.
* FoodPorn: When real food is found again, everyone thinks it looks delicious.
* FurryFandom: The governor has this.
* GenderEqualsBreed
* GenerationXerox: [[spoiler:Literally. Artificial humans, should they live long enough, eventually give birth regardless of conception. Takeko and Umeko give birth to two little girls that look '''''EXACTLY''''' like the Director.]]
* GirlishPigtails
** MegaTwintails
* GirlsLoveStuffedAnimals
* GrandTheftMe: Subverted since the twins are happily cohabitating in Yuriko-chan's body.
* GrotesqueCute
* HeroicSacrifice: [[spoiler:Kiyomi so that Kaori and the kids can escape to the surface and later Yuki and Miki to empower Yuriko and raise Yuka.]]
* HotScientist: Kajiwara and Momoyama.
* HumiliationConga: The Director gets a particularly epic one.
* IdolSinger: Seiko. Kimiko is a [[LesYay BIG]] fan.
* ImprobablyFemaleCast: Neither of the recurring males matter in the grand scheme of things.
* InterspeciesRomance: Rika and a Brain person, which spawns Yuka.
* KarmicDeath:[[spoiler:The Director gets one, thanks to LaserGuidedKarma.]]
* KickTheDog: Over the course of the manga, the Director personally kills 3 women, abuses her staff, patients and position and [[ArsonMurderAndJaywalking eats animals from the local zoo.]]
* LaserGuidedAmnesia: [[spoiler:Kiyomi after her HeroicSacrifice. Kajiwara eventually finds and repairs her, dubbing her B-ko.]]
* LaserGuidedKarma: Keiko gets hit HARD with this.[[spoiler: She has dreams of someone killing her. The daughters of the women she [[EpicFail spectacularly failed to save]] escape to the surface world along with one of the many nurses she's been abusing under her employ. She manages to recapture and murder the nurse [[YouKilledMyFather which earns the wrath of the young girls the nurse had raised.]] Three of the girls die but not before one of them gives birth to a fifth girl and the twins give their powers and spirit to the fourth so she can raise the baby. While this is going on, Keiko has hired another nurse who, unfortunately for her, [[ActionGirl is not as easily intimidated.]] With the help of a surface animal, a long-term patient and the other nurses, the new nurse gets Keiko put in jail, where she finally meets her end [[CrowningMomentOfAwesome when the surface girls pass by and put an arrow through her heart]].]]
* MachiavelliWasWrong: Remember kids, abuse does not improve employee morale!
* MadDoctor: Keiko.
** MadScientist: Keiko, when she's in the mood or high off her gourd. And she usually is.
* MagicPlasticSurgery
* TheMagicTouch
* {{Meganekko}}: Masako.
* MushroomSamba
* NiceHat: The odango hairstyle that Kajiwara wears all the time is actually a ''HAT.''
* NippleAndDimed
* OlderThanTheyLook: NO ONE knows how old the Director actually is and she gets plastic surgery regularly.
* PointyHairedBoss: The Mayor to Kajiwara.
* PsychoLesbian: The Director.
* RaisedByNatives
* RapidAging: [[CuteMonsterGirl Yuka]] ages to an adult within four years.
* RapunzelHair
* {{Revenge}}: Yuriko has happy dreams of [[spoiler:killing Keiko.]]
* RidiculouslyCuteCritter
* RobotBuddy: Nursing Robots Kiyomi and Azami.
* RobotMaid: B-ko.
* SacrificialLion: Kaori, Aiko and Rika.
* {{Shojo}}
* SpecsOfAwesome: Masako.
* StupidEvil: The Director. Justified by her being literally crazy and often high.
* SupremeChef: B-ko. She eventually writes a cookbook for all of the recipes she developed on the surface world.
* TeamMom: Nurse Kaori and Aiko. Also the manager of the Yasuragi bar, appropriately nicknamed "Mama."
* TimeSkip
* TookALevelInBadass: [[spoiler:After escaping to the surface, Seiko re-emerges as a badass, [[EyepatchOfPower eyepatch wearing]] ActionGirl.]]
** Virtually everyone once they get away from the Director.
* TragicDream
* UnwittingInstigatorOfDoom:[[spoiler:Seiko. There's no reason why she would know Kimiko and Kaori are enemies though.]]
* TheVoiceless: Rika and Yuka.
* WalkingShirtlessScene: On several occasions, [[NippleAndDimed the Director, strippers and the surface girls.]]
* WhiteMagic: Usually employed by Yuki and Miki.
* YouGoGirl: Kajiwara.
* [[YouKilledMyFather You Killed Our Surrogate Mother]]: Yuriko does not take Kaori's death sitting down.
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