[[quoteright:200:http://static.tvtropes.org/pmwiki/pub/images/Apocalypse_no_Toride_1_2559.jpg]]

''Apocalypse no Toride'', or "Fortress of the Apocalypse" by Kuraishi Yuu, follows 4 inmates at the Shouran Juvenile Reformatory: the falsely accused Maeda Yoshiaki, cool but dangerous Masafumi Yoshioka, the strong and silent but fair Iwakura Gou, and the smart-mouthed genius Yamanoi Mitsuru. Upon arriving at Shouran on false murder convictions, Maeda Yoshiaki would rather be anywhere on earth, but when a van full of infected zombies crashes into the prison and its passengers begin to attack the guards and inmates, Maeda and his cellmates begin a fight to the death to stay alive amongst the infected from the outside world and the anarchy that arises within the prison. Eventually forced to leave the prison's walls of safety, the boys of Cell 4 find horrors in the ravaged cities beyond what they could have ever imagined.
----
!!This manga provides examples of:
* AnArmAndALeg: [[spoiler: Maeda thought they were going to kill him, but they were simply planning on cutting off the limb that was bitten by the Bokor.]]
* [[spoiler: [[AndThenJohnWasAZombie And Then Maeda Was A Bokor:]] He's certainly infected, showed the increased regeneration and the ability to control the mindless zombies. The change wasn't full yet though, he still had only 1 pupil... and his genitals.]]
* ApocalypseAnarchy: Type 2, and only because it happened ''fast''. Uninfested shops are treated as open season for free supplies and equipment.
* BadAssPacifist: Played with when it comes to the cultists. They believe the zombies are divine, and have developed a special fighting style to deal with them without killing them. However, when it comes to humans who get in their way, they either shoot them on sight or toss them to the hoard.
* BadGuysDoTheDirtyWork: At first. Maeda tries to hang back from the action, but eventually is forced to carry his weight in combat.
* BeautyIsBad: [[spoiler: The beautiful blonde woman's beauty is what tips off the group that the soldiers from the UN are suspicious and of course she turns out to be part of a cult.]]
* BarbieDollAnatomy: The Bokor has no nipples, genitals, or even excretory organs.
* BlobMonster / TheWormThatWalks: The Bokor uses a mound made of hundreds of zombies, which can form 'arms' to strike or capture targets. The mound also shift its mass around to protect him.
** CoolChair: And on top of the mound, he sits on a chair made of several zombies kneeling subserviently in the form of a throne.
* CastFullOfPrettyBoys: While the "pretty" part is debatable[[labelnote:*:]]While the main group of four and the juvie warden certainly aren't half bad, pretty much everyone else is either ordinary or sometimes rather ugly[[/labelnote]], the trope mostly comes from the fact that there have so far been two female characters in the entire series so far. Justified in that the main setting is a male juvenile detention center.
* CombatClairvoyance: Hitotsukabuto claimed that he can see 2 seconds into the future, allowing him to preemptively react to many dangers. He wasn't exaggerating.
* CompellingVoice: [[spoiler: How the Bokor controls the zombies.]]
* CrapsackWorld: Whether it was before or after [[TheEndOfTheWorldAsWeKnowIt everyone died]] isn't entirely clear.
* {{Cult}}: [[spoiler: The people pretending to be from the UN worship the Bokor as one closest to God and view the zombies as "angels".]]
* EvenBadMenLoveTheirMamas: Iwakura leads the boys to his mom's old arcade, which she kept open even after he left home, and sets the high score one last time.
* EvolutionaryLevels: [[spoiler: The ZombieApocalypse is previous life evolving/dying out so that a new ecosystem in which the Bokor can survive in thrives.]]
* FetusTerrible: [[spoiler: After having its head blown off the Bokor grows a babies head in its own head, which proceeds to bite off Maeda's fingers.]]
* FleshEatingZombie
* GenreSavvy: Mitsuru is very intelligent, and figures out many central plot points simply through intuition. For instance, he manages to figure out that the Bokor's goal was to infect Maeda, and that [[spoiler: the infection probably spreads very slowly based on how it would do things like bite of its own tongue so it could force Maeda to drink the resulting blood.]] When a survivor who's a biologist contact's the juvenile detention facility, he nearly hangs up on her because he's offended at how she felt the need to explain the nature of the outbreak to him using rabies as a point of reference--he'd figured out that a virus was to blame ''way'' earlier in the story.
* HealingFactor: [[spoiler: The Bokor can regenerate from having its head cut off or even its brains blown to bits. Though it takes time for it to fully regenerate.]]
* HiveMind: [[spoiler:Maeda encounters a [[HiveQueen mysterious man]] who can exert some form of sound-based control over the zombies. They pile on top of one another to carry him, and grow in ferocity to defend him.]]
* HumanoidAbomination: [[spoiler: The mysterious man who is called a Bokor.]]
* ImAHumanitarian: [[spoiler: ''Nimble'' zombies were shown doing this after one of their own was killed.]]
* MakeMeWannaShout: [[spoiler: The Bokor can do this. It's also how he controls the zombies.]]
* MonsterClown: [[spoiler:The doglike nimble zombies' facial features - dark-rimmed eyes, missing noses, no lips, and disgusting grins - evoke makeup rather than gore.]]
* OurZombiesAreDifferent: Mitsuru theorizes on the fly that [[PlagueZombie a virus is to blame]]. Later evidence of [[ViralTransformation severe mutation]] and an apparent hive mentality could either support or contradict him; the cast may never find out.
** At first the zombies show intelligence even as they try to devour others, but become mindless very quickly. [[spoiler: The "nimble" creatures appear to retain their intelligence and even trick the protagonists to entering a shed where they store food. They are also shown ''running away'' from the Bokor.]]
* PowerUpgradingDeformation: First appearing in Vol. 2, the [[spoiler:mutant zombies are roughly canine quadrupeds with human heads, hands, and feet]]. They completely lose the ability to speak, but run much faster than normal undead.
* ReasonableAuthorityFigure: Arguably, Hitotsukabuto. At first he kicked the main characters out of the Academy as a form of death sentence, but when they returned with the promised weapons, he stuck true to his words of letting them stay (albeit with a little threat). During the Rikkun incident, he was willing to let the main characters go because they ''were'' attacked first. And during the Bokor's attack on the Academy, he protected Maeda from the Bokor's [[MakeMeWannaShout sound blast.]]
* ReignOfTerror: Inside the prison, once an inmate with [[{{Yakuza}} serious mob connections]] takes over.
** At first it looked as if Hitotsukabuto was on his way to becoming the [[http://tvtropes.org/pmwiki/pmwiki.php/Film/DayOfTheDead?from=Main.DayOfTheDead Captain Rhodes]] and [[http://tvtropes.org/pmwiki/pmwiki.php/ComicBook/TheWalkingDead The Governor]] of the series. However, in chapter 18 [[spoiler: the [[BiggerBad bigger bad]] and her private army show up]].
* StalkerWithACrush / StalkerWithoutACrush: Who knows what the deal is when it comes to the Bokor, but it's been obsessed with Maeda ever since he first harmed it [[spoiler: and its got is to infect him and make Maeda into another Bokor.]]
* ThemeNaming: One of the other reasons the [[spoiler: UN soldiers are believed to be suspicious. They all have names of characters from ''WesternAnimation/ThomasTheTankEngine''.]]
* TooGoodToBeTrue: [[spoiler: The UN soldiers, especially when pretty much everyone who asks them about their loved ones is told that they evacuated safely.]]
* UndyingLoyalty: The main group of four roommates, which later grows to six when they encounter two more survivors, almost always survives primarily because of their fierce loyalty to one another.
* VillainousRescue
* ZombieApocalypse
* ZombieGait: Regular zombies do this, [[spoiler:but they'll start running if the mysterious man is nearby and in danger. ''Nimble'' zombies are very fast.]]
* {{Bald of Evil}}: The "nimble" creatures.
----