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‘Sekiryuutei of the Blazing Truth’ Hyoudou Issei and his master Rias Gremory, nice to meet you. I am one of the primordial Gods of Olympus, Nyx, the Goddess of Night.

–Nyx to Issei Hyoudou and Rias Gremory, True Volume 1, Life.3 Our New Friend Is The Mysterious Diva


Nyx is the Primordial Goddess of the Night and the younger sister of Erebus in Greek mythology and one of the creators of Thanatos, Hypnos, and Oneiroi. Nyx and her brother joined Hades and the Alliance of Hell to eliminate the DxD team, Longinus users, chief-gods of each mythology, and Ajuka Beelzebub.


Nyx is a beautiful young woman with the cute face of a child that has long black hair and with pointy ears. She wears a cute frilly dress called Godly Virgin Killer Clothes that has a corset jumper skirt. Her body also gives out a tremendous dark aura.


Nyx is a cheerful, yet sadistic person who enjoys seeing others in pain and suffering. After receiving her special garment, Nyx became arrogant enough to believe she is untouchable by those who are virgins. But despite this, Nyx is shown to be honorable as she accepts her defeat at the hands of Issei with a satisfied smile and shares information about Hades.

She is not above praising others such as Rias being worthy of being Issei’s King because she figured that Nyx was waiting for Issei to attack her.

Like her brother Erebus, she is shown to be concerned about the unchecked power of the Longinus Sacred Gears, as she views them as abnormal anomalies that greatly interfere in the world.


In the past, Nyx and her brother Erebus created Thanatos, Hypnos, and Oneiroi.

Powers & Abilities

Immense Strength: As a Primordial Goddess of Greek mythology, Nyx is a very powerful goddess.

Darkness Manipulation: As the Goddess of the Night, Nyx can form spinning dark aura and is capable of cover the whole area with the darkness of the night and destroying magic barriers. She can also unleash black waves of darkness out of her hand and black bullets.

Master Magician: Nyx is a very skilled user of Olympus Magic, which she can use for a variety of effects.

  • Teleportation Magic: Nyx create countless transportation magic circle summoning two thousand devils to fight against her opponents.
  • Hypnosis Magic: Nyx can use Olympus Magic to control Ingvild Leviathan.

Flight: During the events of True Volume 1, Nyx has demonstrated the ability to stay afloat in mid-air.


Godly Virgin Killer Clothes: These are special-made clothing she received from the Gods of Hell, which makes her immune to attacks from virgin males such as Issei. As such, techniques such as Dress Break, Pailingual, and even Penetrate that can bypass all defenses has proven ineffective against Nyx. After being touched by virgins, it can impose fatal curses on them. However, these clothes doesn't defend her against the shockwaves caused by the canceled attacks. Issei was able to destroy them using Dress Break DxD, which was further strengthened by Ingvild's song using Nereid Kyrie.


  • In Greek myth, Nyx and Erebus were born from Chaos (the void), the two gave birth to Aether (light) and Hemera (day).
  • Nyx is the second goddess to fight Issei in battle, the first being Hel.
    • She is also the second goddess Issei has used Dress Break on, Hel being the first again.
  • Her name means "night" in Greek; the alternate spelling "Nox" means the same in Latin.