YMMV / World's End Harem

• Base-Breaking Character: Right from the beginning of the series, the fanbase is split apart, and it's mostly around the male characters:
  • One part simply cannot reason with Reito's unwillingness to perform his duties to be part of humanity's repopulation by having sex with probably thousands, maybe millions, of women as one of the five remaining men on earth. To them it doesn't matter if he is shocked about society's collapse and billions of men's deaths, nor that he had a lover waiting for him before he went into cryostasis and now he wants to find her— any sane man, in their view, should not refuse millions of women obligated to reproduce with him, even if he had his own moral objections to the plan. The other part is more understanding to Reito's predicament; not only was this "duty" pushed on him happened overnight as far as he is concerned due to him just waking up from cold sleep, but all the men he knew, including relatives, are dead or in cryostasis like his brother, and the woman he loved his whole life has disappeared. The new world order is pushing him to become a breeding stallion, an animal for reproduction, without giving him time to adapt. Most people would need a lot of time to absorb all of this info.
  • Hino's eagerness to drown himself in the pleasures his new role as a Breeding Slave bring is found by some to be an interesting change of pace in the harem genre, with some asking to see a bit more of his day to day life. However, he is also shown to not care in the slightest that most men in the world are dead because he is living a good life, which led to many others dismissing him as an irredeemable sociopath. That said, he ultimately shows some redeeming qualities later, so he still has some fans.
  • Shota's is very popular in some parts of the fandom due to him getting lots of character development, and his "Truman Show" Plot situation being seen as a more interesting premise. However, when the story focuses too much on his slice-of-life segments, it loses sight of the grander overarching plot, especially the dystopian pressure-cooker that could blow at any moment, so there are also people who are not fond of how much screentime Shota gets. His slow transition into indulgence is also a major point of contention with him. Does it make his character more interesting, or does it destroy the good aspects of his character and makes him unsympathetic?
• Catharsis Factor: Although we don't get to see it in full, a lot of fans were pleased when Reito and his girlfriend finally have sex.
• Complete Monster: The Minister of Technology for the United Women is a misogynistic scientist. A depraved pervert, the Minister drugs her subordinates into sex-crazed animals in order to have them rape the virtuous hero Reito, hoping drive him mad with lust and later reduce all men to lunatics who only crave sex. Casually cruel as well, she keeps a naked employee restrained to throw darts at her just to entertain herself.
• Crosses the Line Twice: Zen. Force-fed drugs and then left unattended for extended periods of time, tied to a pole, for at least a week, and then whipped bloody and having his face shoved underwater, to the point there was a legitimate fear he drowned to death, is horrific. Him standing up with a Slasher Smile afterwards and going full-tilt "Super Sayan fuck monkey" pounding at least a dozen women into jelly from the orgasmic after-glow and still not being satisfied, waking up the next morning with a massive migraine and having no clue what happened the night before...
• Ensemble Dark Horse: In the first popularity poll, Akira placed first, even though at this point of the story she had no role besides being one of Shota's many conquests.
• Fandom Rivalry: You can often see Parallel Paradise fans talk dismissively about this series and vice versa, given that both stories center around a boy being thrust into a Lady Land filled with girls they need to have sex with for plot reasons.
• Growing the Beard: General consensus is that the story picked up in volume 3, with the introduction of Shota and his cast.
• Ron the Death Eater: A portion of the audience are frustrated at Reito's unwillingness to mate with the multitudes of women throwing themselves at his feet, and consider him a selfish bastard for shirking from his duties to repopulate the world and prevent human extinction. However, Reito had only been awake for less than a month while looking for a cure. The negative reactions to his unwillingness would be more understandable if a larger time window was present and he was still selfishly refusing sex. They also ignore he only asked for a month to search for a cure before starting making babies, rather than refusing it entirely. Not to mention that most arguments against him have nothing to do with how he treats the girls individually — all surround his objectification as a sperm source and as a Meal Ticket for the girls, which was largely why he was so wary of his situation in the first place. His haters are pretty much arguing that if you aren't immediately willing to be objectified for "the greater good", you are a bad person.
• Squick: Hino's observer uses videos of him having sex with his harem as masturbation fuel. Kind of fucked up.
• They Wasted a Perfectly Good Character:
  • Pretty much every girl in Shota's harem. They all have unique designs and get enough focus in the initial chapters to develop different and interesting personalities. However, when the focus moves back to the main plot, they are all shoved aside and demoted to being "Shota's harem" and nothing else. Only Shota himself and Karen actually contribute to the main plot.
  • Shota's sister is one of the only two people who seemed to treat him well before the Gendercide, and is missing when he wakes up. She could be used for many things, such as helping him realize the "Truman Show" Plot he is in, or contribute to his Character Development by reacting to how much he changed after falling in indulgence, which could expire a number of different of feelings on him that would be interesting to explore. Instead, she is quickly forgotten by both her brother and the story.
• They Wasted a Perfectly Good Plot:
  • Reito's existence being revealed to the world is treated as a big deal In-Universe, but we see very little of how the world reacted to the reveal or how he interacts with the public.
  • The chapter where Hino gets rejected by Reito's sister frames his reaction in such a negative light, it seemed to be clear foreshadowing to him doing something evil to get back at her. What actually happened is that the subject is completely forgotten by everyone, with Hino himself only mentioning his interest in Mahiru again once as a brief joke that is quickly brushed aside.
• Uncertain Audience: The series can't seem to decide whether it's just a hardcore Ecchi work or if it's actually Porn with Plot. The main character refusing to have sex with all the girls in front of him and ultimately finding himself in a sci-fi drama plot full of mysteries and twists points to the latter. However, the series will also dedicate many chapters to the sexual escapades of the other men, which are pure Fanservice with only the thinnest connections to the main plot, if they have any connection at all. This turns the manga into a frustrating read for everyone: those who just wanted an Ecchi manga hate how Reito's insistence on not having sex cuts short any erotic moment with him, while those who are invested into the plot have to deal with it coming to a halt several times just to get even more Fanservice chapters.
• Unintentionally Unsympathetic: Reito holding out for his girlfriend is seen as this to some viewers, finding it meaningless in the bigger picture when he is tasked with breeding to repopulate the human race and he's effectively holding them back (even though all this has been forced on him to begin with). It doesn't help that he's denying the female candidates a better lifestyle and living conditions (which they can get if they breed with him, so their children will be as healthy as possible) because of his loyalty to Erisa. Reito being okay with his sister interacting with Hino (known, at that point, for fully indulging in his "anything I want I get" lifestyle and gunning for her specifically because she's not interested in him) was also a point brought up against him.
• What Do You Mean, It's for Kids?: Despite the frequent nudity and sexual content, the manga runs in the online magazine Shonen Jump +. The spinoff World's End Harem: Fantasia, however, is more appropriately run in the seinen publication Ultra Jump.

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