History Manga / WorldsEndHarem

** Hino Kyouji, the Number One, is the complete opposite of Reito: Hino accepted the new world where women throw themselves at the remaining men pretty quickly, is constantly having sex without a care in the world, and is perfectly happy with a situation where he is treated like a King and the Harem is always at bay to fulfill his wishes. Reito can't bring himself to do what Hino is doing as he's still thinking about his one true love, and he can't stop thinking about the millions of people who died while he was in cryostasis, unlike Hino, who treats such ideas as an afterthought. Instead of having sex nonstop like Hino does, Reito decides to make a cure for the virus and bring back the men who entered the cryostasis when the virus started to spread.

* GoneHorriblyRight: [[spoiler:Three years following the development of the vaccine, men have been protected of the MK-virus. However, thanks to the vaccine being somewhat sabotaged, all of the vaccinated men have lost their libido and sexual drive, triggering the new plot three years later.]]

''World's End Harem'' '''(''''''''Shuumatsu no Harem'''''''')''' is a sci-fi {{Ecchi}} Main/{{Shounen}} Manga Series authored by '''LINK''' and drawn by '''Shouno Kotarou'''. It began serialization in May 8th, 2016, running in the online magazine [[http://plus.shonenjump.com/rensai_detail.html?item_cd=SHSA_JP01PLUS00004017_57 Shounen Jump Plus]]. It's got a lot of nudity and sexual content, in case you hadn't guessed, so it's definitely NotSafeForWork.

When Reito awakens five years later, he opens his eyes to a world that has turned completely upside down. A stoic, beautiful woman named Mira Suou introduces herself as his exclusive agent, and explains that although they found a cure for his Multiple Sclerosis, humankind was struck by a catastrophe [[SleptThroughTheApocalypse while he was asleep]]: Four years before, [[ThePlague an extremely lethal and contagious new virus]] surfaced on the planet, one that mysteriously [[{{Gendercide}} only targets men]]. Over 99.9% of the world's male population was killed by what they dub the MK or Man-Killer virus; A small number of men escaped into cryostasis to wait for the cure, but they will still eventually die from the virus if the cure is not found. Now the survival of humanity is in peril since there are no males around to father children, and even male babies concieved through artificial insemination die as soon as they're born.

Mira tells Reito that he is one of only five males who were somehow made [[TheImmune immune to the virus]] by the experimental Multiple Sclerosis cure they recieved during cryostasis: Reito is the second so far to be woken up. Meanwhile, the first subject they revived proved capable of fathering male children immune to the virus, but not through artificial insemination; only those concieved through sexual intercourse acquired the father's immunity. Given these circumstances, the government intends to use Reito and the others as breeding stallions to have sex with and impregnate as many women as possible so that their children can replenish the world's population.

Reito is shocked and devastated by these revelations, and is extremely anxious to learn that his beloved Erisa went missing without a trace three years ago while researching the virus. Now Suou and her superiors are pressuring him to choose mates from among eager female volunteers, but Reito insists that Erisa is the only woman in the world he would want to have children with. Suou lets him bargain for the right to refuse sex for one month while he tries to find out what happened to Erisa, as well as conduct his own research on the virus. As his efforts are frequently interrupted to fend off seduction attempts, he stumbles upon evidence that the virus wasn't a natural phenomeonon, but the product of a malevolent conspiracy whose members are working to silence anyone who knows too much. What part will Reito play in the effort to save the human race?

When Reito awakens five years later, he opens his eyes to a world that has turned completely upside down. A stoic, beautiful woman named Suou Mira introduces herself as his exclusive agent, and explains that although they found a cure for his Multiple Sclerosis, humankind was struck by a catastrophe [[SleptThroughTheApocalypse while he was asleep]]: Four years before, [[ThePlague an extremely lethal and contagious new virus]] surfaced on the planet, one that mysteriously [[{{Gendercide}} only targets men]]. Over 99.9% of the world's male population was killed by what they dub the MK or Man-Killer virus; A small number of men escaped into cryostasis to wait for the cure, but they will still eventually die from the virus if the cure is not found. Now the survival of humanity is in peril since there are no males around to father children, and even male babies concieved through artificial insemination die as soon as they're born.

Suou tells Reito that he is one of only five males who were somehow made [[TheImmune immune to the virus]] by the experimental Multiple Sclerosis cure they recieved during cryostasis: Reito is the second so far to be woken up. Meanwhile, the first subject they revived proved capable of fathering male children immune to the virus, but not through artificial insemination; only those concieved through sexual intercourse acquired the father's immunity. Given these circumstances, the government intends to use Reito and the others as breeding stallions to have sex with and impregnate as many women as possible so that their children can replenish the world's population.

* QuestionableConsent: The UW forbids rape[[note]]though they don't really seem to ''care'' if Reito gets raped[[/note]] but they're not averse to employing [[LeonineContract Leonine Contracts]] to get women into bed with their men. Most of the time, this isn't necessary, but if a man wants a ''particular'' woman, they can generally find a hook they can use. The [[CrapsackWorld crapsack state of the world]] they created has become a useful tool; women who wouldn't otherwise be interested ''will'' put out if the other choice is to stay in the slums.

* TheRevolutionWillNotBeCivilized: The UW is a tyrannical, misandrist hellhole and employs QuestionableConsent tactics to get men and women to participate in its breeding program, but the main difference between them and the Japanese Branch of Izanami, the main rebel organizatino, is that the rebels don't even ''pretend'' to respect anyone's rights, branding their men like livestock, ''actually'' enslaving them and raping them by force. Thankfully, there are other, more reasonable branches.

The mainline series ended in June 21st, 2020, with 85 chapters, collected in 12 volumes; however, that's just the end of Part One; LINK plans to follow with Part Two, ''World's End Harem: After World'' In May 2021.

** Two women argue about the typical 'Female Utopia' element of this trope. One women claims that without men there are no more wars and society is better. While the other argues back that female pleasure has vanished.

In April 2018 a little spin-off started serialization, this time in ''Ultra Jump'' thus going into {{Seinen}} territory. '''''World’s End Harem FANTASIA''''' is set in a completely different setting, in a fantasy world of warriors and magic on the verge on human extinction due constant attacks from other species. A king receives a prophecy that humanity’s crisis can be averted by sacrificing a specific maiden, a solution that seems to be connected to a young adventuring hero and his merry band of female companions. And so, their tale (and trouble) begins.

A second spinoff, ''World's End Harem: Brittania Lumiere'', was announced in 2020. This one surprisingly is a more female focused reverse harem premise, with the heroine the subject of a goddess project and her harem her protectors.

An anime adaptation has been confirmed to air in 2021, but then they got delayed until 2022.

An anime adaptation has been confirmed to air in 2021.

* EmotionlessGirl: Suou presents herself as someone with a lack of varied expressions beyond her deadpan face, only focused in her job to make Reito initiate the mating process with many women (including her). However when confronted by others about Reito's lack of cooperation, she seems to hold some loyalty towards him and when seducing him she tries to put on a smile, which makes Reito see Erisa on her sometimes; almost veering into SugarAndIcePersonality territory.

* IWantMyBelovedToBeHappy: What Reito originally intended for Erisa, he only confessed his feelings to get it out of his heart before his imminent death by succumbing to multiple sclerosis, urging her to find someone else, reminding her that she is very popular and has been confessed to by a popular senpai not long ago; Erisa doesn't comply to Reito's wish and says she will wait for him to be cured during cryostasis, in hopes that their advanced society will find a cure during his cold sleep.

* NoSell: When Mahiru, Reito's younger sister, learn that Hino Kyouji, Number 1 want her as mating partner her reaction is complete disgust and refusal for the request. Hino suggest meeting her and having a talk, but even this doesn't change the result.

* QuestionableConsent: The UW forbids rape[[note]]though they don't really seem to care if Reito gets raped[[/note]] but they're not averse to employing [[LeonineContract Leonine Contracts]] to get women into bed with their men. Most of the time, this isn't necessary, but if a man wants a ''particular'' woman, they can generally find a hook they can use. The [[CrapsackWorld crapsack state of the world]] they created has become a useful tool; women who wouldn't otherwise be interested ''will'' put out if the other choice is to stay in the slums.

* TheRevolutionWillNotBeCivilized: The UW is a tyrannical, misandrist hellhole and employs QuestionableConsent tactics to get men and women to participate in its breeding program, but so far as we've seen, the main difference between them and the rebels is that the rebels don't even ''pretend'' to respect anyone's rights, branding their men like livestock, ''actually'' enslaving them and raping them by force.

* {{Stripperific}}: 5 years in a female-dominated society, in the verge of collapse for billions of men died, apparently prompted the living women to wear extremely fetishistic clothing, women considered to be of civilized upbringing and still sane to boot, poor women who couldn't cope with men dying turned insane and were dropped in ghettos, to be left wearing rags.

* WeAreStrugglingTogether: [[spoiler: Izanami]] doesn't really agree on anything but their hatred of the UW. One faction are an anarcho-primitivist rape cult, while [[spoiler: the Chinese branch seem to be a decent bunch...so far as we've seen]].
* AWorldHalfFull: Billions of men died due the virus and society collapsed because of it, but while they couldn't salvage everything, yet the remaining women could keep some areas functioning to a decent state, they've studied the five remaining men and reached the conclusion children born from their genes are immune to what killed the previous men. There's a light at the end of the tunnel after all.

* AbsenceMakesTheHeartGoYonder: Cover girl Suou Mira bears a strikingly resemblance to Erisa, but with a different personality and bigger breasts; the visible differences aren't much in the face of the absurd situation before Reito's eyes though, with Suou throwing herself at him, Reito sometimes sees Erisa on her and is a step away from letting go of his original love, still Reito finds the resolve to preserve himself till he finds out what happened to Erisa in the new world.
* TheAlcoholic: The newly introduced woman at the end of Chapter 4, Akane. Every time she's seen, she's always drinking. The only time she isn't drinking is when she's sleeping.
* AllWomenAreLustful: The absence of a male populace in the five years the MK Virus had spread out, it apparently made women very willing, extremely so, to engage in mating sessions with the five remaining men on earth. Many women blush uncontrollably in Reito's presence, and those are the allegedly civilized ones; the women dropped on the fallen cities completely lost themselves in despair, so that the very sight of Reito prompted one of them to pursue him like an animal in heat.

* AudienceSurrogate: At least for those frustrated with Reito's unwillingness to have sex for the project, Chapter 7 had a researcher loudly complain about him.

* BleachedUnderpants: Shouno Kotarou is a ''hentai'' mangaka of moderate fame, you can definitely tell the influence from his origins on how women are drawn in this work, their proportions, looks and curves are very generous to say the least.
* BoobsOfSteel: The woman shown at the end of Chapter 4, Akane managed to easily, and without any effort, break a bathroom's door handle to force herself on Reito, she is well endowed of course.
* BreedingSlave: Reito and the other surviving men doesn't seem to have a choice but to father as many children as possible. While Reito is given one month to find the woman he loves, as he chose her for having children. However, that was a flashback since the first chapter shows Reito is being pushed in order to choose from the present women to father a child and judging from his behaviour, he doesn't seem to have a choice.

* CuteBruiser: The little girl, Sui, who was thought to be the nurse, turned out to be the bodyguard and she was shown to be able to bring down a bear with one strike.

* DoesNotLikeMen: Rea Katagiri seems to have a very low opinion about males, even though there are only five now. Recently revealed that the UW are controlled by The Three Sage who have two thing in common between them: high intelligence and unparalleled hate for men.
* DoubleStandardRapeFemaleOnMale: Averted. However, at the end of chapter 4, Reito is in progress of being "assaulted" by an aggressive woman who turned off the lights while he was in the bathroom taking a shower and broke the door handle to keep him from leaving so they can get "comfortable".

* EmotionlessGirl: Suou presents herself as someone with a lack of varied expressions beyond her deadpan face, only focused in her job to make Reito initiate the mating process with many women (including her), however when confronted by others about Reito's lack of cooperation, she seems to hold some loyalty towards him and when seducing him she tries to put on a smile, which makes Reito see Erisa on her sometimes; almost veering into SugarAndIcePersonality territory.
* TheEndOfTheWorldAsWeKnowIt: In 2040, physical labor has been made unnecessary, technology handles every sphere of society, with humanity just sitting back letting machines do all the work for them; one day, a killer virus comes and kills every single man on earth, society promptly collapses for apparently the majority within the few people that could handle the independent AI that made society work were men, the surviving women couldn't provide support for the machines as good as it was when men lived and since they grew up in a society that has abandoned the idea of doing things with their own hands, they barely have the knowledge to keep things together.

* {{Fanservice}}: Runs largely on it, great focus to curvy proportions on all women and many naked shots of women willing to become mothers of a new human race.

** Hino Kyouji, the Number One, is the complete opposite of Reito; Hino accepted the new world where women throw themselves at the remaining men pretty quickly, is constantly having sex without a care in the world, and is perfectly happy with a situation where he is treated like a King and the Harem is always at bay to fulfill his wishes. Reito can't bring himself to do what Hino is doing as he's still thinking about his one true love, and he can't stop thinking about the millions of people who died while he was in cryostasis, unlike Hino, who treats such ideas as an afterthought. Instead of having sex nonstop like Hino does, Reito decides to make a cure for the virus and bring back the men who entered the cryostasis when the virus started to spread.
** Doi Shouta, the Number Three candidate, is pretty much your standard ecchi or harem protagonist in comparison to Reito; he's a teenage high school student who doesn't quite know how to respond to women, and is more susceptible to their charms. For bonus points, he was bullied relentlessly by everyone in sight save his piano teacher. And while Reito doesn't know where his girlfriend went, said teacher appears quickly, [[spoiler:takes his virginity, and has a week-long affair with him before taking a break due to "[[WomensMysteries female problems]]." It's implied that she's pregnant and it's all but stated that Doi's "Agent" is tailoring the approach; where they drowned the eager Hino in suitable women and are playing an intellectual game with the geeky Reito, she's showering the introverted Doi in ''emotional'' seduction]].

** The virus killed billions of men and those who are still alive are the ones who entered cryostasis. Among those, some are infected and it's believed that they'll die in a year. There are five men who are immune to the virus, two of them were awakened and asked to father as many children as possible. While No.1 is happy about the situation No.2, the main character, decided to find a cure for the virus and bring back the men currently in stasis.

* HospitalHottie: Akane, Reito's 'nurse'.

* TheImmune: Reito is immune to the Virus, the women theorizes that a combination of him contracting multiple sclerosis, going into cryostasis in hopes they would find a cure during his cold sleep, and consequent cure during said sleep made him immune to the virus; now possessing valuable genes that the women compete over to birth a new human race.

[[TwentyMinutesIntoTheFuture In 2040]], new energy sources and advanced technology have made it possible for all of society's important functions--including food production, manufacturing, transportation, telecommunications, policing, and medical care--to be handled by AI and machines with minimal input from humans. Practically no one in the developed world has to work for a living, and only those driven by intellectual curiosity or a sense of duty pursue a career.

Pharmaceutics students '''Reito Mizuhara''' and '''Erisa Tachibana''' have been in school together for more than a decade, from elementary school all the way up to university at the Japan Advanced Medical Institute. One day, Reito asks Erisa to talk with him in private and confesses he has always been in love with her. To his complete surprise, Erisa tells him she's been waiting for him to confess to her for years because she felt the same way all along! Her happiness is short-lived, however, because of what he reveals to her next.

Reito confessed his feelings to Erisa because he thought they might never meet again. He's been diagnosed with Multiple Sclerosis[[note]]"cell sclerosis" in the original, perhaps intended to be some kind of fictional version of the disease[[/note]], a life-threatening degenerative disease that doesn't have a cure. The AI computers are working on a new therapy, but it could take as many as five years for them to complete it, and Reito doesn't have that much time left. Therefore, he will be kept suspended in [[HumanPopsicle cryo sleep]] until the cure is found. Before he goes to sleep, Reito just wanted to tell Erisa his feelings and [[IWantMyBelovedToBeHappy push her to find someone else]], since he doesn't feel it's right to make her wait for him. This suggestion that she should find someone else makes Erisa upset and she runs off.

Reito meets up with his older brother Ryuu and little sister Mahiru as he prepares to go into cryo sleep at the hospital. At the last minute, Erisa barges in to say goodbye, and declares [[IWillWaitForYou she will wait for him]] as long as it takes. They press their hands together across opposite sides of the cryonic capsule's glass, and her tearful, smiling face is the last thing he remembers seeing as he drifts off to sleep.

When Reito awakens five years later, he opens his eyes to a world that has turned completely upside down. A stoic, beautiful woman named Suou Mira introduces herself as his exclusive agent, and explains that although they found a cure for his Multiple Sclerosis, humankind was struck by a catastrophe [[SleptThroughTheApocalypse while he was asleep.]]

Almost four years ago, [[ThePlague an extremely lethal and contagious new virus]] surfaced on the planet, one that mysteriously [[{{Gendercide}} only targets men]]. Over 99.9% of the world's male population was killed by what they dub the MK or Man-Killer virus; A small number of men including Reito's brother escaped into cryostasis to wait for the cure, but they will still eventually die from the virus if the cure is not found. Since only a select few knew how to operate the Super Computers, and most of those people were men, the women who survived found themselves incapable of maintaining civilization at its previous level. Women formed a new world government after the initial collapse and tried the best they could to keep the infrastructure of some areas functioning decently, but right outside these protected zones are urban wastelands whose inhabitants live in deprivation. Worst of all, the survival of the species is in peril since there are no males around to father children, and even male babies concieved through artificial insemination die as soon as they're born. At this rate the government won't be able to control the people unless they can show that something is being done to stop humanity's slide into extinction.

Suou tells Reito that he is one of only five males who were somehow made [[TheImmune immune to the virus]] by the experimental Multiple Sclerosis cure they recieved during cryostasis: Reito is the second so far to be woken up. However, nobody knows how to reproduce the results or how long it might take for the computers to work out the solution. Meanwhile, the first subject they revived proved capable of fathering male children immune to the virus, but not through artificial insemination; only those concieved through sexual intercourse acquired the father's immunity. Given these circumstances, the government intends to use Reito and the others as breeding stallions to have sex with and impregnate as many women as possible so that their children can replenish the world's population.

Reito is shocked and devastated by these revelations, and is extremely anxious to learn that his beloved Erisa went missing without a trace three years ago while researching the virus. Now Suou and her superiors are pressuring him to choose mates from among eager female volunteers, but unlike the previous subject--who has been more than happy to live in luxury while getting to sleep with as many gorgeous women as he wants--Reito insists that Erisa is the only woman in the world he would want to have children with. Suou lets him bargain for the right to refuse sex for one month while he tries to find out what happened to Erisa, on the condition that he must face the temptation of sleeping in the same bed with a different woman every night. Needless to say, her job would be a lot easier if he just gave in, and after that time's up he won't have any choice.

As Reito searches for leads and conducts his own research on the virus--efforts which are frequently interrupted to fend off seduction attempts--he stumbles upon evidence that the virus wasn't a natural phenomeonon, but the product of a malevolent conspiracy whose members are working to silence anyone who knows too much. What part will Reito play in the effort to save the human race?

* EagleLand: Type 2. [[spoiler: While the U.S. researching for ways to have women produce children without the presence of men makes sense, seeing as only 5 of them are actually viable partners, the fact that the three sages, the completely aex-crazy misandrist leaders of the UW, are running the country and doing their damnedest to make such a thing ''necessary'' by exterminating every trace of the Y chromizone, has to be one of the worst ways to portray the U.S. in fiction.]]

[[TwentyMinutesIntoTheFuture In the year 2040]], new energy sources and advanced technology have made it possible for all of society's important functions--including food production, manufacturing, transportation, telecommunications, policing, and medical care--to be handled by AI and machines with minimal input from humans. Practically no one in the developed world has to work for a living, and only those driven by intellectual curiosity or a sense of duty pursue a career.

* TwentyMinutesIntoTheFuture: Though the manga was first released in 2016, the prologue is set in 2040 and the main story takes place in 2045.

!!This manga series provides the examples of:

* ShoutOut: In Chapter 84, Kamiya does a ''Anime/CuteyHoney'' routine before getting interrupted.

The mainline series ended in June 21st, 2020, with 85 chapters, collected in 12 volumes; however, that's just the end of Part One, LINK plans to follow with Part Two, ''World's End Harem: After World'' In May 2021.

The mainline series ended in June 21st, 2020, with 85 chapters, collected in 12 volumes; however, that's just the end of Part One, LINK plans to follow with Part Two in a later date, yet to be announced.