The enemies in Demon Slayer: Kimetsu no Yaiba are not humans or aliens, but rather those known as "demons." However, there are many different types of demons, from those who look exactly like demons to those who look no different from humans, and even those with strange appearances. In this article, we will take a look at the "demons" that appear in Demon Slayer: Kimetsu no Yaiba.
The minor characters are classic, easy-to-understand demons
Source: Demon Slayer: Kimetsu no Yaiba © Koyoharu Gotouge/Shueisha, Aniplex, ufotable
First off, the minor demons are classic, almost demonic! Their eyes are reptilian, and their veins are visible all over their bodies, giving them the distinct feeling of being parasitized by a demon. Considering that it's been a long time since they've eaten human flesh, these two are likely low-level demons.
Decapitating a demon is essentially the only way to defeat it.
Source: Demon Slayer: Kimetsu no Yaiba © Koyoharu Gotouge/Shueisha, Aniplex, ufotable
In battles against demons, no matter how wounds you inflict, even the weakest demons will quickly heal at night. But the demon's weak point is its neck! You can defeat demons by cutting off their heads. However, there is a special example: Shinobu, the Insect Pillar, uses a poison that can kill demons.
Sunlight is a demon's weakness!
Source: Demon Slayer: Kimetsu no Yaiba © Koyoharu Gotouge/Shueisha, Aniplex, ufotable
Demons have an overwhelming advantage over humans in nighttime battles thanks to their near-invulnerable bodies, but they also have a fatal weakness: sunlight. This applies to even the most powerful demons, from weaklings to the most powerful ones. Exposure to sunlight causes burning symptoms and leads to death. As a result, there have been times when sunlight has caused an Upper Rank demon to flee, even when facing the lower-ranking Tanjiro.
Nezuko Overcomes the Sun as an Exception
Source: Demon Slayer: Kimetsu no Yaiba © Koyoharu Gotouge/Shueisha, Aniplex, ufotable
Anyone who has been transformed by demon blood, regardless of form, will die if exposed to sunlight. However, Nezuko is an exception, having overcome the sun and now able to move freely even in the sun. While the exact reason is unclear, this makes Nezuko a special presence for both friend and foe.
The Demon's Prayer: Overcoming the Sun!
Source: Demon Slayer: Kimetsu no Yaiba © Koyoharu Gotouge/Shueisha, Aniplex, ufotable
Nezuko has overcome the sun's rays. Overcoming the sun was a prayer for Muzan, and when he found out, he rejoiced and took off his human disguise, and began to target Nezuko. Incidentally, overcoming the sun occurred after the battle with Hantengu, but Muzan was unusually praising his subordinates, ignoring the fact that he had lost the battle.
Those considered elite among the demons
By the way, the Lower Rank demons are...
Source: Demon Slayer: Kimetsu no Yaiba © Koyoharu Gotouge/Shueisha, Aniplex, ufotable
Although the Lower Rank demons are looked down upon by the Upper Rank demons, they are fierce warriors chosen by Muzan to join the Twelve Kizuki after receiving a share of his blood. However, when Rui, the Lower Rank Five, was killed by Tomioka, Muzan called them together. The gathered lower-ranking demons are angered by Muzan and are killed one by one... In the end, all demons except for "Lower Rank One" are killed by Muzan.
Do the Upper Ranking demons scout out promising people?
Source: Demon Slayer: Kimetsu no Yaiba © Koyoharu Gotouge/Shueisha, Aniplex, ufotable
Demons can transform humans into demons by giving them their blood. Gyutaro, Upper Rank Six, became a demon through blood shared with him by the current Upper Rank Two, and the current Upper Rank Three also scouts humans to become demons. In particular, when recruiting the Pillar Rengoku, he tries desperately until the very last moment, and seems proactive when it comes to increasing the number of strong allies.
A Summary of Demons from Demon Slayer: Kimetsu no Yaiba
Source: Demon Slayer: Kimetsu no Yaiba © Koyoharu Gotouge/Shueisha, Aniplex, ufotable
I did some research on demons, but as expected, weak enemies are often killed instantly, making them seem very "weak." In the original work, the number of Upper Rank demons has been reduced to three due to the battle with the Pillars, but it seems that Upper Rank and Lower Rank demons sometimes switch places, so it is possible that a new Upper Rank demon will appear in the future. (However, the Lower Rank demons have said that they do not need Muzan, so this is unlikely...)
