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** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are the highest-ranking demons and thus the most powerful in terms of capability), Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons). A user of Black Demon Series is capable of killing multiple common vampires armed with second-class weapons at once and going toe-to-toe with a vampire city guard armed with a first-class weapon. Against a Progenitor however....

to:

** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are the highest-ranking demons and thus the most powerful in terms of capability), Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons). A user of Black Demon Series is capable of killing multiple common vampires armed with second-class weapons at once and going toe-to-toe with a vampire city guard armed with a first-class weapon. Against It's still suicidal for them to engage in a Progenitor however....one-on-one fight with even a lower-ranking Progenitor.
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** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons). A user of Black Demon Series is capable of killing multiple common vampires armed with second-class weapons at once and going toe-to-toe with a vampire city guard armed with a first-class weapon. Against a Progenitor however....

to:

** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of the highest-ranking demons and thus the most powerful in terms of capability) capability), Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons). A user of Black Demon Series is capable of killing multiple common vampires armed with second-class weapons at once and going toe-to-toe with a vampire city guard armed with a first-class weapon. Against a Progenitor however....
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** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity to steal their host's body. In return, demons lend their physical abilities (e.g. [[SuperStrength Super Strength]] and [[HealingFactor Healing Factor]]) and Curse (the only thing that could overcome the regenerative skills of vampires) to the hosts.

to:

** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity to steal their host's body. In return, demons lend their physical abilities (e.g. [[SuperStrength Super Strength]] and [[HealingFactor Healing Factor]]) and Curse Power (the only thing that could overcome the regenerative skills of vampires) to the hosts.
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** They used to be vampires, who were later turned into demons under certain circumstances. It is said that all vampires become demons in the end. It is not mandatory to first become a vampire in order to become a demon. One may be born with the trait inherited from a demon-possessed parent and gradually become a true demon. One may also become a demon after contact with a demon.
** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons lend their physical abilities (e.g. [[SuperStrength Super Strength]] and [[HealingFactor Healing Factor]]) and Curse (the only thing that could overcome the regenerative skills of vampires) to the hosts.

to:

** They used to be vampires, who were later turned into demons under certain circumstances. It is said that all vampires become demons in the end. It is not mandatory to first become a vampire in order to become a demon. One A human may be born with the trait inherited from a demon-possessed parent and gradually become a true demon. One may also become a demon after contact with a demon.
** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing to steal their host's body. In return, demons lend their physical abilities (e.g. [[SuperStrength Super Strength]] and [[HealingFactor Healing Factor]]) and Curse (the only thing that could overcome the regenerative skills of vampires) to the hosts.
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* YouGottaHaveBlueHair: Her hair is blueish-gray. Though in the anime, it's more of a lavender color.

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[[foldercontrol]]



* YouGottaHaveBlueHair: Her hair is blueish-gray. Though in the anime, it has more of a lavender color.

to:

* YouGottaHaveBlueHair: Her hair is blueish-gray. Though in the anime, it has it's more of a lavender color.

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Removed: 49

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* DoesNotLikeShoes: He is always barefoot.



* EarthyBarefootCharacter: He is always barefoot.
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Added DiffLines:

* EvenTheGirlsWantHer: In the Catastrophe light novels, its mentioned that she's thought of as "beautiful" and a "goddess" by both males and females with her inspiring blushing worship in everyone. It's even lampshaded in text with the mention that "everybody seemed to adore Mahiru".
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Mahiru was the next successor of the Hīragi Family. She stole Krul's brother Asura from her and used him as her own demon weapon. She would eventually turn herself into a demon and was sealed within Guren's weapon, becoming a cursed gear called Mahiru-no-Yo.

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Mahiru was the next successor of the Hīragi Family. She stole Krul's brother Asura from her and used him as her own demon weapon. She would eventually turn herself into a demon and was sealed within Guren's weapon, becoming a cursed gear Black Demon Cursed Gear called Mahiru-no-Yo.
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* EvenEvilHasLovedOnes: Despite being ruthless and quite merciless to those got in her way, she did care a lot for Guren and Shinoa deeply when she was a human.

to:

* EvenEvilHasLovedOnes: Despite being ruthless and quite merciless to those got in her way, she did care a lot for Guren and Shinoa deeply when she was a human.
Is there an issue? Send a MessageReason:
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** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons lend their physical abilities (e.g. [[SuperStrength Super Strength]] and [[HealingFactor Healing Factor]]) and Curse (Kiju) that could overcome the regenerative skills of vampires to the hosts.

to:

** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons lend their physical abilities (e.g. [[SuperStrength Super Strength]] and [[HealingFactor Healing Factor]]) and Curse (Kiju) (the only thing that could overcome the regenerative skills of vampires vampires) to the hosts.
Is there an issue? Send a MessageReason:
None


** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons lend their physical abilities (e.g. [[SuperStrength]] and [[HealingFactor]]) and Curse (Kiju) that could overcome the regenerative skills of vampires to the hosts.

to:

** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons lend their physical abilities (e.g. [[SuperStrength]] [[SuperStrength Super Strength]] and [[HealingFactor]]) [[HealingFactor Healing Factor]]) and Curse (Kiju) that could overcome the regenerative skills of vampires to the hosts.
Is there an issue? Send a MessageReason:
None


** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons lend their physical abilities (e.g.[[SuperStrength]] and [[HealingFactor]]) and Curse (Kiju) that could overcome the regenerative skills of vampires to the hosts.

to:

** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons lend their physical abilities (e.g. [[SuperStrength]] and [[HealingFactor]]) and Curse (Kiju) that could overcome the regenerative skills of vampires to the hosts.
Is there an issue? Send a MessageReason:
None


** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons lend their physical abilities and Curse (Kiju) that could overcome the regenerative skills of vampires to the hosts.

to:

** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons lend their physical abilities (e.g.[[SuperStrength]] and [[HealingFactor]]) and Curse (Kiju) that could overcome the regenerative skills of vampires to the hosts.
Is there an issue? Send a MessageReason:
None


** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons lend their physical abilities and curse power that could overcome the regenerative skills of vampires to the hosts.

to:

** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons lend their physical abilities and curse power Curse (Kiju) that could overcome the regenerative skills of vampires to the hosts.
Is there an issue? Send a MessageReason:
None


** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons). A user of Black Demon Series is capable of killing multiple common vampires armed with second-class weapons at once and going toe-to-toe with a vampire city guard armed with a first-class weapon. Against a Vampire Progenitor however....

to:

** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons). A user of Black Demon Series is capable of killing multiple common vampires armed with second-class weapons at once and going toe-to-toe with a vampire city guard armed with a first-class weapon. Against a Vampire Progenitor however....
Is there an issue? Send a MessageReason:
None


** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons). Every user of Black Demon Series is capable of killing multiple common vampires armed with second-class weapons at once and going toe-to-toe with a city guard armed with a first-class weapon. Against a Vampire Progenitor however....

to:

** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons). Every A user of Black Demon Series is capable of killing multiple common vampires armed with second-class weapons at once and going toe-to-toe with a vampire city guard armed with a first-class weapon. Against a Vampire Progenitor however....
Is there an issue? Send a MessageReason:
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** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons). Every user of Black Demon Series is capable of killing multiple common vampires armed with second-class weapons at once and going toe-to-toe with a city guard armed with a first-class weapon. However, they would still be outmatched by a noble.

to:

** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons). Every user of Black Demon Series is capable of killing multiple common vampires armed with second-class weapons at once and going toe-to-toe with a city guard armed with a first-class weapon. However, they would still be outmatched by Against a noble.Vampire Progenitor however....

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A high-ranked demon of the Black Demon Series who formed a contract with Yu.

to:

\n[[quoteright:300:http://static.tvtropes.org/pmwiki/pub/images/asuramaru.png]]

A high-ranked possession-type demon of the Black Demon Series who Series. He formed a contract with Yu.Yūichirō Hyakuya and became his Cursed Gear in Seraph of the End: Vampire Reign.

He also appears in Seraph of the End: Guren Ichinose: Catastrophe at Sixteen as the cursed gear of Mahiru Hīragi.



* TheReveal: In the Catastrophe light novel, it is revealed that Asuramaru is/was [[spoiler: Asura Tepes, Krul's brother.]]

to:

* TheReveal: In the Catastrophe light novel, novels, it is revealed that Asuramaru is/was [[spoiler: Asura Tepes, Krul's brother.]]



A high-ranked demon of the Black Demon Series who formed a contract with Kimizuki.

to:

A high-ranked possession-type demon of the Black Demon Series who Series. He formed a contract with Kimizuki.Shihō Kimizuki and became his Cursed Gear.




Shinoa's sister and Guren's former lover. She was the next successor to the Hīragi family until she eventually turned into a demon and was sealed within Guren's weapon, becoming a Black Demon Cursed Gear called Mahiru-no-Yo.

to:

\nShinoa's sister [[quoteright:300:http://static.tvtropes.org/pmwiki/pub/images/mahiru_hragi.png]]

The love interest
and Guren's former lover. demon weapon of Guren Ichinose. She is the main female character and plays an important role in the Seraph of the End: Guren Ichinose: Catastrophe at Sixteen light novel series.

Mahiru
was the next successor to of the Hīragi family until she Family. She stole Krul's brother Asura from her and used him as her own demon weapon. She would eventually turned turn herself into a demon and was sealed within Guren's weapon, becoming a Black Demon Cursed Gear cursed gear called Mahiru-no-Yo.



* DemonicPossession: As she was born with a demon inside her, the demonic side of her gradually took more and more time in control of her body.



* FoolForLove: Everything she's done was to be with Guren.

to:

* FightingFromTheInside: In the Catastrophe light novels, her human and demon personalities can be seen arguing and fighting for control when Mahiru-no-Yo puts Guren in danger.
* FoolForLove: Everything she's done was to be with Guren.


Added DiffLines:

* SplitPersonality: She was a Namanari: a human halfway to becoming a demon, with two personalities.
** SplitPersonalityTakeover: When she became a full demon, her human personality was completely consumed by Mahiru-no-Yo.
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** Demons [[EmotionEater feed off of desire]], but are [[ThePowerOfLove weakened by love]].

to:

** Demons [[EmotionEater feed off of desire]], but are [[ThePowerOfLove weakened by love]]. That's why it's difficult for humans to successfully form contract with demons; demons are capable of using the most passionate desires and emotions inside human heart to manipulate the potential hosts.
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** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons allow their hosts to have the demons' physical abilities and curse power that could overcome the regenerative skills of vampires.

to:

** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons allow lend their hosts to have the demons' physical abilities and curse power that could overcome the regenerative skills of vampires.vampires to the hosts.
Is there an issue? Send a MessageReason:
None


** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons allow their hosts to have the demons' physical strength and curse power that could inflict a non-healable wound on the vampires.

to:

** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons allow their hosts to have the demons' physical strength abilities and curse power that could inflict a non-healable wound on overcome the regenerative skills of vampires.
Is there an issue? Send a MessageReason:
None


** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons). Users of Black Demon Series are capable of killing multiple common vampires armed with second-class weapons at once.

to:

** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons). Users Every user of Black Demon Series are is capable of killing multiple common vampires armed with second-class weapons at once.once and going toe-to-toe with a city guard armed with a first-class weapon. However, they would still be outmatched by a noble.
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Spelling correction


* VoluntaryShapeshifting: As he exists as a mental concept, he can appear as anyone within Yuu's memories. He often takes the forms of the 12-year-old Mikaela Hyakuya buy chooses his forms depending on what he believes will be best for breaking Yuu's will.

to:

* VoluntaryShapeshifting: As he exists as a mental concept, he can appear as anyone within Yuu's memories. He often takes the forms of the 12-year-old Mikaela Hyakuya buy but chooses his forms depending on what he believes will be best for breaking Yuu's will.
Is there an issue? Send a MessageReason:
None


Shinoa's sister and Guren's former lover. She was the next successor to the Hīragi family until she eventually turned into a demon and was sealed within Guren's weapon, becoming a Cursed Gear called Mahiru-no-Yo.

to:

Shinoa's sister and Guren's former lover. She was the next successor to the Hīragi family until she eventually turned into a demon and was sealed within Guren's weapon, becoming a Black Demon Cursed Gear called Mahiru-no-Yo.
Is there an issue? Send a MessageReason:
None


** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons.) Users of Black Demon Series are capable of killing multiple common vampires armed with second-class weapons at once.

to:

** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons.) demons). Users of Black Demon Series are capable of killing multiple common vampires armed with second-class weapons at once.
Is there an issue? Send a MessageReason:
None


** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons.)

to:

** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons.)) Users of Black Demon Series are capable of killing multiple common vampires armed with second-class weapons at once.
Is there an issue? Send a MessageReason:
None


** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons allow their hosts to have immense power.

to:

** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons allow their hosts to have immense power. the demons' physical strength and curse power that could inflict a non-healable wound on the vampires.
Is there an issue? Send a MessageReason:
None


** Demons are purely benevolent creatures born from passionate desire, so they appear at the age when they were most innocent and pure, when they felt that everything was possible.

to:

** Demons are purely benevolent creatures born from passionate desire, so they appear at the age when they were most innocent and pure, when they felt that everything was possible.
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Created separate page for Demons

Added DiffLines:

!Demons

The source of magical powers. They used to be vampires, who were later turned into demons under certain circumstances.

[[folder:In General]]

!!Tropes that apply to Demons:
* HumansAreTheRealMonsters: Same reason as Vampires.
* OurDemonsAreDifferent:
** They used to be vampires, who were later turned into demons under certain circumstances. It is said that all vampires become demons in the end. It is not mandatory to first become a vampire in order to become a demon. One may be born with the trait inherited from a demon-possessed parent and gradually become a true demon. One may also become a demon after contact with a demon.
** They can be sealed in what the humans call Cursed Gear. Stronger vampires make stronger demons, which make stronger Cursed Gear. Through a contract ceremony, the human tries to convince the demon to give him/her power and if they are successful, the demon makes a [[MagicallyBindingContract contract]] with said human and becomes their Cursed Gear. The only reason demons form this contract is to have an opportunity at stealing their host's body. In return, demons allow their hosts to have immense power.
** Demons are purely benevolent creatures born from passionate desire, so they appear at the age when they were most innocent and pure, when they felt that everything was possible.
** Demons [[EmotionEater feed off of desire]], but are [[ThePowerOfLove weakened by love]].
** There are two types of demons: Manifestation and Possession.
*** Manifestation types demons have the convenient ability to remain in a smaller, more portable size or manifest into the full-sized weapon at will. They may have the power to cast blessings or curses. Manifestation is the state in which the user lets his or her contracted demon come out and be able to use its special power. This drastically reduces the defensive abilities of the host since the demon moves elsewhere. These types of demons work best at different ranges, and the type of ability varies.
*** Possession types are demons whose malice is too strong, making it ferocious. They refuse to submit so easily and are mean and aggressive. They are hell-bent on [[DemonicPossession possessing its user]], and it is common for them to engage in close combat to display their might. They cannot change into a portable size or manifest. They are more well-balanced for offense and defense than manifestation-types because activating their particular capabilities does not leave their hosts vulnerable. They increase the physical strength and power of their user. They are typically limited to close-range combat or melee fighting. They are not supposed to have the special abilities seen with manifestation-type demons.
** There are several ranks in which demons are classified: Black Demon Series / Bodhisattva (which are highest rank of demons and thus the most powerful in terms of capability) Rakshasa / Dakini, Child, Wisdom Kings, Yaksha, and Myo-O (the lowest rank of demons.)
[[/folder]]

[[folder:Asuramaru]]
!Asuramaru
!!!Voiced by: Hibiku Yamamura (Japanese), Creator/ColleenClinkenbeard (English)

A high-ranked demon of the Black Demon Series who formed a contract with Yu.
----
* AnimeHair: And it's fabulous.
* DefeatMeansFriendship: [[spoiler: A rare inversion of the trope. Asuramaru relinquishes his power to Yuu when Yuu promises to be his friend]].
* DudeLooksLikeALady: The dress doesn't help.
* EarthyBarefootCharacter: He is always barefoot.
* HairDecorations: Wears a gold headband.
* OperaGloves: He has black sleeves that separate from the dress.
* PeekABangs: His bangs cover his left eye.
* RapunzelHair: His hair goes beyond his feet.
* TheReveal: In the Catastrophe light novel, it is revealed that Asuramaru is/was [[spoiler: Asura Tepes, Krul's brother.]]
* VoluntaryShapeshifting: As he exists as a mental concept, he can appear as anyone within Yuu's memories. He often takes the forms of the 12-year-old Mikaela Hyakuya buy chooses his forms depending on what he believes will be best for breaking Yuu's will.
* YouGottaHaveBlueHair: Asuramaru has dark blue hair though it appears more purple in the anime.

[[/folder]]

[[folder:Kiseki-Ō]]
!!!Voiced by: Tomoyo Kurosawa (Japanese), Creator/BrynApprill (English)

A high-ranked demon of the Black Demon Series who formed a contract with Kimizuki.
----
* DudeLooksLikeALady
* HairDecorations: He wears a black headband behind his horns.
* VoluntaryShapeshifting: He often takes the image of Kimizuki's younger sister Mirai while battling him for control.
* YouGottaHaveBlueHair: He has as light green hair.

[[/folder]]

[[folder:Mahiru-no-Yo/Mahiru Hīragi]]

!Mahiru-no-Yo/Mahiru Hīragi
!!!Voiced by: Creator/AyaEndo (Japanese), Creator/AlexisTipton (English)

Shinoa's sister and Guren's former lover. She was the next successor to the Hīragi family until she eventually turned into a demon and was sealed within Guren's weapon, becoming a Cursed Gear called Mahiru-no-Yo.
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* BitchInSheepsClothing: She's revered as the Goddess of First Shibuya, but she's a morally ambiguous manipulative chessmaster whose goal is to get with Guren in any way possible.
* TheChessmaster: She had a lot to do with the collapse of the world.
* CoolBigSis: To Shinoa.
* TheCorrupter
* CuteAndPsycho: Gets a bit closer to the "Psycho" end every time we see her.
* DemonOfHumanOrigin
* EvenEvilHasLovedOnes: Despite being ruthless and quite merciless to those got in her way, she did care a lot for Guren and Shinoa deeply when she was a human.
* FoolForLove: Everything she's done was to be with Guren.
* IJustWantToBeNormal: In the prologue of Castrophe Volume 3, she told Shinya that sometimes she wishes that she was just an ordinary girl, and not the heiress of the Hīragi family.
* [[ManipulativeBastard Manipulative Bitch]]
* PeerlessLoveInterest: Guren has only ever wanted her.
* RapunzelHair
* SailorFuku: The only thing we ever see her in.
* SingleTargetSexuality: Guren.
* StarCrossedLovers: With Guren.
* TeenGenius: Considered the most talented of the Hīragi.
* TheUnfettered
* WorldsMostBeautifulWoman: At least according to everyone in the school. She was even called a "Goddess".
* {{Yandere}}: She is extremely merciless towards those she considers an obstacle in her path.
* YouGottaHaveBlueHair: Her hair is blueish-gray. Though in the anime, it has more of a lavender color.
[[/folder]]

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