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It has been a while. It is I, Maou-Lucifer from the Underworld, Sirzechs at your service. The God of the Realm of the Dead, Hades-sama. I’m very sorry for the sudden visit.

–Sirzechs greeting Hades, Light Novel Volume 12, Satan

Sirzechs Lucifer, formerly known as Sirzechs Gremory, was the Satan Lucifer who was in charge of Domestic Affairs, prior to the events of the Evil Dragon War. He is the former heir to the Gremory Clan, the eldest child of Zeoticus Gremory and Venelana Gremory and the older brother of Rias Gremory. Sirzechs is also the husband of Grayfia Lucifuge and the father of Millicas Gremory. Known as the Crimson Satan, he is the former leader of the Four Great Satans who ruled the Underworld with the former title of "Lucifer". His peerage is said to be the strongest group in the Underworld.


Sirzechs is a handsome man who seems to be in his early 20's. He has shoulder length crimson hair and blue eyes (blue-green in the anime season 1-3) inherited from his father, Zeoticus, similar to Rias. In fact, Issei has described him as the male version of Rias.

In his true form, Sirzechs takes the form of the Power of Destruction in the shape of a human with crimson aura.


As a Gremory, Sirzechs is shown to be very kind and caring towards others, preferring to have things sorted out through talking instead of fighting. He also has a very laid-back personality, preferring to do things at his own pace and causing his wife to punish him for it. Humorously, when he's up to his usual antics, the mere mention of his wife's name is enough to make him apologize immediately. However, Sirzechs does have a serious side, which he has only revealed twice: during his fight against Creuserey Asmodeus and his confrontation with Hades.

Sirzechs has shown to be unbreakable and selfless determination to protect the people he cared about even if it means sacrificing himself. During his youth, Sirzechs joined the Devil Civil War after his youth choir of innocent Devil children was unreasonably killed by the Old Satan Faction solely to prevent any more victims. When Trihexa was revived, Sirzechs chose to joined the neverending battle against the Apocalyptic Beast in the Isolation Barrier in order to prevent it from endangering the world even if it means millenias of separation from his family including his beloved wife Grayfia and son Millicas.

Sirzechs is considered as a siscon because of his deep love for his younger sister, Rias Gremory, and as an overprotective and loving father for his son Milicas Gremory. Sirzechs also has a childish and playful side, shown when he deeply enjoyed posing as Satan Red while playing with his son Milicas, but then becoming upset over his son choosing Oppai Dragon over Satan Red, acting in a jealous manner.

Sirzechs is revealed to have a perverted side which is directed solely toward Grayfia, as he stated to Issei that he is free from distraction when he gropes his wife's breasts.


When Sirzechs was born, he floated in the air releasing the Power of Destruction which was so powerful even when he was a newborn, it could disintegrate or deform surrounding furniture and decoration without a trace. None of the doctors could touch him, except Venelana who held her son and asked her husband Zeoticus on what his name would be to which he replied, "Sirzechs".

At 17 years old, in the Gremory castle town's public hall, Sirzechs would play piano and sing nursery rhymes with children. He was very close with the people of the Gremory territory. Attending a social gathering attended by Beelzebub's relative, he got into a fight with the prince by protecting the heir of Oriax until Grayfia intervened. Sirzechs fell in love at first sight with the silver-haired beauty.

He is also the childhood friend and rival of Ajuka Beelzebub, both being extremely powerful. In the past there was a quarrel between the Old Satan faction, who wanted to continue the War against Angels and Fallen Angels, and the Anti-Satan faction, who wanted to prevent this for the sake of the Devils. Sirzechs, at the time, was an ace of the Anti-Satan faction alongside Ajuka and was even called a Hero. The result of the quarrel was the fleeing of the Satan faction to the end of the Underworld, and the creation of the current Devil society.

It was also during that time that Sirzechs met Grayfia and fell in love with her. They would meet in secret during the Devil Civil War. The two of them eventually married each other after the end of the conflict between the Old Satan Faction and the Anti Satan Faction. Sirzechs was originally the intended heir of the House of Gremory until he became the Satan Lucifer, passing the right to his younger sister Rias.

Powers & Abilities

Immense Demonic Power: Alongside Ajuka and Rizevim, Sirzechs is a natural born Super Devil with irregular demonic power and talents, even from inheriting his parents' traits, which surpassed even the Four Original Satans. Even as a new born baby, Sirzechs could unconsciously release excessive demonic power that disintegrate his surroundings with only his mother alone being able to touch him. As a teenager, when his powers are still underdeveloped he easily defended himself from the assaults of an Ultimate Class Devil of the Beelzebub Clan, easily dispersed all his demonic power attacks while holding back, and annihilated the latter's large fly monster in a single blast. In the Devil Civil War, when using his true form, Sirzechs's could singlehandedly destroyed a Malebranche's enhanced Beelzebub Devil in his giant Fly Chimera form as well as Bidleid, the son of the Original Beelzebub. After the Devil Civil War, Sirzechs was chosen by the Great King Faction to become the second Lucifer, his father said no other position fit him.[1] Sirzechs' full strength in his true form was ten times the original Lucifer and even Ddraig felt so awed that he called him a true monster, a further testament to his power.[2]

  • Power of Destruction (滅びの力, Horobi no Chikara): Sirzechs inherited from his mother the Bael's Power of Destruction which is further enhanced by the superior demonic power talents of his Gremory lineage. He mastered Power of Destruction to an overwhelming level, eliminating anything it touches and Azazel stated the main reason why Sirzechs was chosen to be a Satan was due to how much he mastered it.
    • Sirzechs eliminates Creuserey Asmodeus by using Ruin the Extinct

      Ruin the Extinct (滅殺の魔弾(ルイン・ザ・エクスティンクト), Ruin za Ekusutinkuto): Sirzechs' special technique, also known as Demonic Bullets of Annihilation. Through years of training along with the demonic power talents of the Gremory, Sirzechs has become able to shape his Power of Destruction into numerous, highly mobile spheres able to eliminate things without a trace as well as circumvent the defenses of his target, resulting in minimal damage to the surroundings. He was able to precisely guide his destruction energy sphere into Creuserey Asmodeus' body through his mouth and destroy Ophis' snake without causing any damage to the latter. During his fight with Issei, Ddraig noted that Sirzechs' Power of Destruction is at an abnormal level, speculating that Sirzechs may have placed all his talent and effort into the concept of “eliminating”.
    • Human-Shaped Aura of Destruction (人型に浮かび上がる滅びのオーラ, Hitogata ni Ukabiagaru Horobi no Ōra): Sirzechs' true form. He can convert himself into the Power of Destruction that destroys everything regardless of his will. The full releasing of his powers was enough to cause an earthquake felt in the entire Realm of Dead. According to Azazel, Sirzechs compresses the Power of Destruction into a human shape that releases demonic powers that are ten times more powerful than the original Lucifer. This form's power is so strong that Azazel commented that Sirzechs could have easily defeated Hades, one of the "Top 10 Strongest Beings in the World". However, Sirzechs is unable to fully control this form as the Power of Destruction spreads without his command.
  • Defensive: Sirzechs has shown to be capable of using defensive demonic power, using defensive circles powerful enough to defend against attacks from Creuserey Asmodeus, who was empowered by Ophis' snake enough to increase his powers to Satan-Class.
  • Transformation: Sirzechs appears to be proficient in using transformation demonic power, as Okita mentioned that he met Sirzechs in the form of a black cat.
  • Teleportation: Sirzechs is able to use teleportation from the human realm to the Underworld immediately. Sirzechs even desnotrated the ability to teleport himself into Apophis' Dark Barrier, which was further strengthened by the Trihexa core.

Sirzech's Devil King Magic Circle

Master Magician: In addition to the Power of Destruction, Sirzechs has skills in using magic due to his Gremory heritage, which grants him increased magical abilities.

  • Hypnosis Magic: In Vol 21, he learned a hypnotism spell from Azazel that was powerful enough to subdue Grayfia, a Devil with Satan-Class powers.

Master Hand-to-Hand Combatant: Sirzechs is highly skilled in hand-to-hand combat. By combining physical combat skills with his Power of Destruction, Sirzechs was able to easily overwhelm Issei, another master hand-to-hand combatant in his Scale Mail Armor.

Master Technician: Issei has noted that Sirzechs is a technique type fighter that polishes and masters all of his demonic powers and skills to dispatch enemies efficiently. During his fight with Issei in Vol 8, he could use his Power of Destruction and demonic power skills in different ways to neutralize Issei's attacks and easily corner him.

Master Politician: As the former Satan in charge of Domestic Affairs, Sirzechs is an extremely wise and capable politician, bringing prosperity to the current Devil society with his wise and pacifistic leadership. Sirzechs is deeply respected not only by the Devil civilians of the Underworld but also leaders of other faction such as Odin and Michael. Sirzechs been praised by Azazel, Mephisto and Zekram to be a much better ruler and leader than the Original Satans.

Master Musician: Sirzechs is a dedicated and talented pianist since his youth, having once taught and guided a youth choir of Devil children in singing nursery rhymes. He is also a skilled composer, having composed the music for the Oppai Dragon Song which was praised by the Greek God of Music Apollo.

Flight: Being a Devil, Sirzechs can fly using his wings.


  • Sirzechs' name is derived from the names of two characters from the Gundam TV series, Char Aznable of Mobile Suit Gundam 0079 and Zechs Merquise of Mobile Suit Gundam Wing.
  • In Rating Game fighting-types, Sirzechs is considered as the ultimate Wizard-Technique type Devil.
  • Sirzechs is a talented pianist, having played the piano since he was a teenager and also guided a youth choir of Devil children singing nursery rhymes. He also took upon hinself to compose the Oppai Dragon song.
  • Sirzechs claimed in Volume 6 that he once dreamed of being a musician, which was fulfilled when he composed the Oppai Dragon song to deactivate Issei's Juggernaut Drive.
  • Sirzechs loves to play the role of "Satan Red" with the "Maou Squadron".
  • Sirzechs is one of the two known Devils to be placed among the ranks of the Top 10 "Strongest Beings in the World", along with Ajuka Beelzebub.
  • Sirzechs is the only person among the devils who was able to make a sacred creature into his servant.[3]
  • Sirzechs is over two hundred years old, having reincarnated Souji Okita as his Knight in the late 1800s.[4]
  • Sirzechs owns a crimson sports car that has a simple design, but an elegant look. He would on his days off work, take his son Millicas for a one-hour drive. Azazel installed modifications such as missile launchers, machine guns and other kinds of weaponry, it can even go into space.[5]
  • Sirzechs is the only current Satan to have killed multiple Old Satan descendants, as he killed multiple members of multiple Satan clans; such as Bidleid Bashalun Beelzebub and the Unnamed Beelzebub Descendant from the Beelzebub Clan, and Damaidosu Zereikel Asmodeus and Creusery Asmodeus from the Asmodeus Clan.
  • In Funimation's subtitles, Sirzechs' name is misspelt as Sir Zechs.
  • In the "DxD" popularity election, he came in ninth in the male character category.[6]


  1. Volume 12, Satan
  2. Light Novel Volume 21, Last.DxD Ani and Otouto — United Front —
  3. Light Novel Volume 8, Extra Life. The Fun Family of the Gremory
  4. Light Novel Volume 13, Extra Life. The Worry of the Next-Next Heir-sama
  5. Fantasia Heroine Calendar Book 2018
  6. Dragon Magazine May Issue 2021