History Headscratchers / DemonSlayerKimetsuNoYaiba

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** I might be wrong, but I don't really remember it being said that the Entertainment District was their only hunting ground. Presumably Daki and Gyutaro ate people elsewhere, even if only when they were carrying out tasks for Muzan. Nevertheless, this is an age much before eletronic databases, mass suirvaillance and even professional law enforcement (namely when the siblings were "younger"). A bunch of people disappering across time, namely prostitutes and their johns/pimps in a red-light district, would only register in rumors if that. Plus, The Corps might have investigated the siblings and the district before...[[FridgeHorror and the Hashiras sent to investigate were the ones Daki is said to have eaten]].

** Demons can be said to have advantages compared to humans in general at the cost of eating humans if you disregard the weakness to sunlight. They have enhanced physical capabilities and powers that humans can't have and it has been shown that a demon can be a master at the skills demon slayers use to fight them in the first place which is further exacerbated by them not dying of old age. They also seem to have an enhanced sense of smell for blood among other things that can help them out in the darkness unlike most humans. So, it can indeed be said that the average demon would have an advantage against the average human in the darkness where they aren't protected by the sunlight. Akaza running away is understandable though it does provide a stark contrast to him previously flaunting the advantages of being a demon and he could technically survive in the shade though his options would be limited since the sunlight would affect any of his Blood Demon Art attacks.

* One thing bugged me about Tanjiro's TheReasonYouSuckSpeech to Akaza is the part in which Tanjiro calls Akaza a coward for attacking humans at night when demons have an advantage and retreating during the daylight. How exactly are demons at an advantage at night? As powerful as demons are, their only "advantage" at night is that the sunlight doesn't kill them instantly; I don't recall anything saying that the demons have any advantages at night like enhanced senses apart from their standard regeneration and Blood Demon Arts. Tanjiro isn't wrong to point out that Akaza isn't brave or self-sacrificing like Rengoku is, but retreating from certain death in the sunlight isn't necessarily cowardly in and of itself.

** Demons can be said to have advantages compared to humans in general at the cost of eating humans if you disregard the weakness to sunlight. They have enhanced physical capabilities and powers that humans can't have and it has been shown that a demon can be a master at the skills demon slayers use to fight them in the first place which is farther exacerbated by them not dying of old age. They also seem to have an enhanced sense of smell for blood among other things that can help them out in the darkness unlike most humans. So, it can indeed be said that the average demon would have an advantage against the average human in the darkness where they aren't protected by the sunlight. Akaza running away is understandable though it does provide a stark contrast to him previously flaunting the advantages of being a demon and he could technically survive in the shade though his options would be limited since the sunlight would affect any of his Blood Demon Art attacks.

** They can, but it is specifically mentioned they turn through Muzan’s cells in their own blood, Doma was the one who turned Ume/Daki and Gyutaro, while Kokushibo was the one who turned Kaigaku, but both Kizuki members said their blood was Muzan’s blood and that Muzan had to accept them first, so while a bit lacking in proper explanation it is at least highly implied it all traces back to Muzan, demonkind depends on Muzan’s existence. That said Yushiro is the only demon in existence made outside Muzan’s cells, Tamayo had become her own existence by that point, but she claims Yushiro is the only person she ever managed to turn into a demon, considering she is over 400 years old and Yushiro is revealed to be 35, and it is certainly not easy to make a demon outside of Muzan’s cells.

** People do ''know'' about Demons, they just consider them boogeymen and beings of myth (and even still, it's hinted people have at least some genuine concern over their existence, such as the neighbour offering Tanjiro shelter the night his family was killed). As for why, Demon Slayer takes place in a age before cameras and eletronic databases, meaning no one would have recorded evidence of Demons. Futhermore, demons [[NoBodyLeftBehind turn into nothingness when killed]], meaning no one ever saw a demonic corpse. And finally, Demons often take measures against being found, such as blending in among humans (such as Muzan himself, Daki and Doma) or living in isolated areas (Rui and the Spider Family). All in all, the only evidence the average person has of demons is the occasional rumors and survivovrs accounts, which can easily be dismissed.

* One thing bugged me about Tanjiro's TheReasonYouSuckSpeech to Akaza is the part in which Tanjiro calls Akaza a coward for attacking humans at night when demons have an advantage and retreating during the daylight. How exactly are demons at an advantage at night? As powerful as demons are, their only "advantage" at night is that the sunlight doesn't kill them instantly; I don't recall anything saying that the demons have any advantages at night like enhanced senses apart from their standard regeneration and Blood Demon Arts. Tanjiro isn't wrong to point out that Akaza isn't brave or self-sacrificing like Rengoku is, but retreating from certain death in the sunlight isn't necessarily cowardly in and of itself.

*** Well, this might be verging on WMG, but it’s possible Daki and Gyutaro have been pulling the same trick Gyutaro used to kill the samurai back when they were still humans. Daki’s killings attract a Hashira eventually, who then decapitates her. Said Hashira writes her off as a Lower Kizuki, sends a crow/letter to everyone that the demon in the Entertainment District has been killed… then Gyutaro pops out and kills them. Hence, the rest of the Corp believes they got killed on the way back, similar to how Azaka killed Rengoku after he killed Enmu. Daki didn’t seem to do this when Tengen decapitated her… but she HAD just been set on fire and humiliated. Could be Gyutaro was condescendingly mocking her lack of intelligence for another reason…

* Can demons other than Muzan himself turn people into other demons ? Assuming that the answer is yes, then why [[spoiler: Muzan's death would mean the end of the demonic race ?]]

* Just what the hell is the deal with Sumi, Kiyo, and Naho's [[BlackBeadEyes eyes]]? They're supposed to be human, yet they're the only human characters in the series depicted with these teeny dots of eyes every time they're on screen. It's just [[UncannyValley so damn jarring]]... Kyojuro's [[ThousandYardStare intense gaze]] has nothing on these girls as far as rubbing me seriously the wrong way.

*** Well, this might be verging on WMG, but it’s possible Daki and Gyutaro have been pulling the same trick Gyutaro used to kill the samurai back when they were still humans. Daki’s killings attract a Hashira eventually, who then decapitates her. Said Hashira writes her off as a Lower Kizuki, sends a crow/letter to everyone that the demon in the Entertainment District has been killed…then Gyutaro pops out and kills them. Hence, the rest of the Corp believes they got killed on the way back, similar to how Azaka killed Rengoku after he killed Enmu. Daki didn’t seem to do this when Tengen decapitated her…but she HAD just been set on fire and humiliated. Could be Gyutaro was condescendingly mocking her lack of intelligence for another reason…

*** That last statement is my issue. If there ''have'' been Hashira who went to the district to investigate any potential demons there and subsequently never returned, shouldn't the Corps have known for certain that there were powerful demons there? A Hashira going missing or dying in general isn't any small matter, and I would assume that such important members of the Corps at least report when and where they go to investigate. Also according to Omitsu before Daki killed her, Daki had always been disguised as an Oiran in the district, and she ''does'' hunt people in the district by trapping them in her belly wrap and storing them underground.

** The exact wording was that there were rumors of a demon there, so there are multiple possibilities for that. Susamaru and Yahaba must have stayed at a relatively close proximity if the short timeframe in which they arrived is any indication and they would presumably still eat humans if the opportunity presents itself. Tamayo also said that regular people are capable of eventually figuring out that she is a demon due to her needing to come into contact with humans as a doctor, so that might have caused rumors as well. I'd say that Tanjiro was ultimately there to investigate the rumors and he ended up finding and slaying demons, so that is presumably enough for him to have done his job as a demon slayer and the Demon Slayer Corps would send in someone else if it turns out that there is still an issue.

** The exact wording was that there were rumors of a demon there, so there are multiple possibilities for that. Susamaru and Yahaba must have stayed at a relatively close proximity if the short timeframe in which they arrived is any indication and they would presumably still eat humans if the opportunity presents itself. Tamayo also said that regular people are capable of eventually figuring out that she is a demon due to her neeeding to come into contact with humans as a doctor, so that might have caused rumors as well. I'd say that Tanjiro was ultimately there to investigate the rumors and he ended up finding and slaying demons, so that is presumably enough for him to have done his job as a demon slayer and the Demon Slayer Corps would send in someone else if it turns out that there is still an issue.

** People do ''know'' about Demons, they just consider then boogeymen and beings of myth (and even still, it's hinted people have at least some genuine concern over thei existence, such as the neighbour offering Tanjiro shelter the night his family was killed). As for why, Demon Slayer takes place in a age before cameras and eletronic databases, meaning no one would have recorded evidence of Demons. Futhermore, Demons [[NoBodyLeftBehind turn into nothingness when killed]], meaning no one ever saw a demonic corpse. And finally, Demons often take precauotins against being known by humans, such as blending in among humans (such as Muzan himself, Daki and Doma) or living in isolated areas (Rui and the Spider Family). All in all, the only evidence the average person has of Demons is the occasional rumors and survivovrs accounts, which can easily be dismissed.

** I might be wrong, but I don't really remember it being said that the Entertainment District was their only hunting ground. Presumably Daki and Gyutaro ate people elsewhere, even if only when they were carrying out tasks for Muzan. Nevertheless, this is an age much before eletronic databases, mass suirvaillance and even professional law enforcement (namely when the siblings were "younger"). A bunch of people disappering across time, namely prostitutes and their johns/pimps in a red-light district, would only register in rumors if that. Plus, The Corps might have investigated the siblings and the district before...[[FridgeHorror and the Hashiras sent to investigate were the ones Daki is said to have eaten]].

** I might be wrong, but I don't really remember it being said that the Entertainment District was their only hunting ground. Presumably Daki and Gyutaro ate people elsewhere, even if only when they were carrying out tasks for Muzan. Nevertheless, this is an age much before eletronic databases, mass suirvaillance and even professional law enforcement (namely when the singlins were "younger"). A bunch of people disappering across time, namely prostitutes and their johns/pimps in a red-light district, would only register in rumors if that. Plus, The Corps might have investigated the siblings and the district before...[[FridgeHorror and the Hashiras sent to investigate were the ones Daki is said to have eaten]].

* Assuming that Gyutaro and Daki have always done their killings in the Entertainment District, and they've been part of the Upper Demon Moons for over a century, how has the Entertainment District not caught the attention of the Demon Slayer Corps until Uzui's investigation? This is especially weird considering that, according to Muzan, Daki has killed ''seven Hashira'' in the past. If that many high ranking Demon Slayers have died or gone missing around that area, shouldn't an investigation have taken place long before the story's events?

** They can, but it is specifically mentioned they turn through Muzan’s cells in their own blood, Doma was the one who turned Ume/Daki and Gyutaro, while Kokushibo was the one who turned Kaigaku, but both Kizuki members said their blood was Muzan’s blood and that Muzan had to accept them first, so while a bit lacking in proper explanation it is at least highly implied it all traces back to Muzan, demonkind depends on Muzan’s existence. That said Yushiro is the only demon in existence made outside Muzan’s cells, Tamayo had become her own existence by that point, but she claims Yushiro is the only person she ever managed to turn into a demon, considering she is over 400 years old and Yushiro is revealed to be 35, and it is certainly not easy to make a demon outside of Muzan’s cells.