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Name Dzerve Sejren
Kanji デザーヴ・セジュレン
Romanji Dezābu Sejuren
Alias N/A
Race Human
Birthday September 10th
Age 16
Gender Female
Height 161 cm
Weight 44 kg
Eyes Purple
Hair Purple
Blood Type O
Professional Status
Affiliation United Federations
Occupation Scientist
Previous Occupation None
Team None
Previous Team None
Previous Partner Klaus
Base of Operations Ameria
Personal Status
Marital Status Single
Relatives Sincera Sejren (descendant)
Derrick Sejren (descendant)
Alphonse Sejren (descendant)
Marisa Sejren (descendant)
Kinos Sejren(descendant)
Tsuruko Sejren (dimensional counterpart)
Education Advanced
Status Deceased
Powers and Abilities
Magic None
Curse None
Other None
Weapons Typhoon Driver
Arms Weapon: Arrester Blades
Soul Armour
Soul Armour Name Soul Armour Knight Tachys (神鎧纏最高戦士 (ソウル・アーマー・ナイト) ・光速 (タチズ), Sōru Āmā Naito Tachizu lit. God Armour Clad Supreme Warrior Lightspeed God)

Dzerve Sejren (デザーヴ・セジュレン, Dezābu Sejuren) is the name of the scientist in Aether who created the Soul Armours and the Deus Machina. As the world was quickly advancing in all fields, Dzerve and her former partner, Klaus, discovered the Catalyst Comet in the middle of the Grand Ocean. Bringing the comet back to their government-funded lab, the two dissected it to find a unique particle known as the "Zero Particle". This mythical particle could perform magical feats; but more importantly, Dzerve decided to utilize the material the Catalyst Comet was composed of to create the world's very first independent robots- for this, she was awarded the Aether equivalent of a Nobel Peace Prize- though Klaus, with his pride hurt and tired of being in second place, vanished, and Dzerve didn't see him again until much later.

After learning that her colleague, Klaus, having being influenced by the King of Darkness which he had uncovered, reverse-engineered the zero particles to create eternano and thus use that to create magic, wanting to use it to take over the world while using his powers to mutate humans into Hellions using the Amadam Virus spell, Dzerve looked for a more efficient way of killing the Hellions without the use of nuclear weapons. Upon witnessing her young cousin playing with a toy "Scarlet Striver" figure and toy monster in his room, she came across the inspiration for powered armour which could stand up to the Hellions without resorting to desperate measures. With that, she went to the government for funding, before being approved to create the Soul Armours. Later on during the war, Dzerve created the Deus Machina Number Three, whose construction and birth was in the sake of Dzerve's dream, of one day giving robots the ability and freedom to evolve and grow in the exact fashion of all living beings. However, Dzerve was not without foresight and feared for her ultimate project, and for that, Dzerve sealed her Deus Machina away and sent it to another world, where it would be found by Giselle Mercury with its Daybreak Drive damaged, prompting Giselle to replace the Daybreak Drive with her sickly daughter's soul, allowing her daughter to have a better life.

During the final days of the Cataclysm War and right before Aether's Universal Reboot, Dzerve, along with six other chosen fighters who wielded the Soul Armours that she had created, managed to fight their way to Klaus, who had become the Devil Hellion. In the end, it boiled down to two old friends clashing, with Dzerve eventually defeating Klaus with the Victorize Kick Limit Break- though she was already dying, and with her last moments, she held Klaus back so that he couldn't travel to other dimensions while the Universal Reboot seemingly erased both of them. Dzerve is also the Aether counterpart of Tsuruko Sejren; and when she revs the Typhoon Driver, she can become 'Soul Armour Knight Tachys (神鎧纏最高戦士 (ソウル・アーマー・ナイト) ・光速 (タチズ), Sōru Āmā Naito Tachizu lit. God Armour Clad Supreme Warrior Lightspeed God).


Dzerve strongly resembles Tsuruko; indeed, remnants of Aether often confuse Tsuruko with Dzerve, and the first time Gary saw Tsuruko, he thought she was Dzerve in disguise. The two have nearly identical faces; except for their hair and eye colours. Dzerve Sejren is a young woman with dark purple-to-white gradient hair, and her eyes are soft pink on the top half, and pale yellow on the bottom half with white irises. She is stated to have "the height of your average schoolgirl"; her skin is also said to be so white and smooth that it appears almost like she's made of porcelain. Her facial features are very child-like to the point that when she smiles, it is completely radiant. She has snow-white skin that is akin to a princess's; along with a beautiful figure—moderately large breasts, long, slender legs, and a shapely rear.

In terms of attire, Dzerve wears a similar butterfly hairclip to Tsuruko's, though it is dark violet and it has pointy edges. When working in her lab, Dzerve wears a similar attire to that of Giselle Mercury's, with a long white lab coat over black shirt with a rather low V-neck collar, purple miniskirt, and a pair of black stockings. During the Cataclysm War, Dzerve wears a dark violet dress attached with black laces and a set of grayish magenta-and-dark pink plated armour which adorned her shoulders and waist. The dress is open at the back and the front, in which exposed most of her skin and a two-layered, knee-length skirt. Like Tsuruko's other dimensional counterparts, Dzerve's attire and hair is based on where her power originates from. As such, Dzerve wears dark clothing to reflect the fact that science is seen as a bit of a taboo in the other dimensions.

Personality and Traits

Dzerve and Tsuruko are similar in that both care about those close to them and do not want to hurt anyone; this is shown by her reluctance to let innocents be involved in Klaus' schemes. However, Dzerve is cold, serious, stoic, calm and collected, more so than any of her dimensional counterparts. In fact, one can compare her to Giselle Mercury in that she acts too logically and lacks common sense, a result of her years being a researcher as well as a lack of anyone really close to her. She appears almost ice-cold and quiet; her quietness is not due to a lack of self-confidence however; it is because she is constantly thinking. She has a "no-nonsense" attitude, and follows through with her goals with unexpected determination, putting her goals before anything else.

Befitting her enormous intelligence, Dzerve can be nauseatingly arrogant, proud to claim her superiority over others due to the numerous awards and praises she'd been showered with her entire life. She has a tendency to look down on everyone else who isn't as smart at her, and because of this, she is said to be extremely difficult to work with. Indeed, her sense of superiority leads her to display difficulty in regards to understanding others, and as such, didn't really take into consideration Klaus' glowing jealousy of her and his feelings for her, simply laughing him off when he eventually did tell her; though when this drove him to try and one-up her and get enthralled by the King of Darkness, she felt a sense of guilt that drove her to try and stop his schemes so that the two wouldn't hurt any more people.

Over the course of the Cataclysm War, Dzerve is shown to be extremely driven, never taking time off to take a breather and frequently overworking herself in an attempt to perfect the Soul Armours; in fact, she's shown taking medication to keep herself up and drinking gallons of coffee so that she wouldn't doze off. Dzerve additionally trains herself in boxing and experiments on her own body to bring out peak human potential so that she could fight Klaus herself- by the end of the conflict, it's noted that she's suffering hallucinations and is constantly shaking, yet she's capable of composing herself enough to defeat Klaus. When driven by anger or justice, Dzerve more often than not acts without hesitation to strike down those who oppose her; however, when blinded by anger, she acts without thinking, focusing on naught but revenge.


Dzerve Sejren was born in 3346 P.D in the dimension known as Aether in the country of Ameria to the wealthy Sejren family; she was raised with the belief that as a member of a rich family, she was inherently better than everyone else. Dzerve was also neighbours with Klaus, her eventual lab partner; though she grew up isolated from the rest of the children, feeling herself to be better than them, though she longed for their friendship.



Typhoon Driver (タイフーン・ドライバー, Taifūn Doraibā): The Typhoon Driver is the name of the Driver Belt that allows a wielder to manifest the Tachys Soul Armour upon their body, transforming them into Soul Armour Knight Tachys. The Typhoon Driver takes the form of a stylized red belt, the buckle of which is affixed with an emblem of a stylized 'D', which splits open to reveal a fan when the wielder transforms. The Typhoon Driver functions differently than the other Driver Belts, as Dzerve initially needed to expose the belt to strong gusts of wind in order to transform as she hadn't thought of the Drive Lever yet. However, later on, the Typhoon Driver was upgraded so that by revving the Drive Lever, Dzerve could absorb large amounts of wind in order to power it as she hadn't manifested her fighting spirit yet.

Powers and Abilities

Physical Abilities

Ways of Combat

Master Hand-to-Hand Combatant: While Dzerve was always rather lethargic most of the time, when the Cataclysm War happened, she began to train herself in martial arts so that she would be capable of fighting the Hellion threat. Dzerve has indeed been shown to be quite competent and deadly when unarmed. She has repeatedly shown great agility and coordination in her attacks. In addition to having powerful punches, Dzerve is proficient in counterattacks, takedowns, and body locks. She has, on one occasion, caught an opponent's weapon strike with a single hand; and when in battle unarmed, Dzerve is ruthlessly pragmatic; possessing absolutely no concept of a code of honour; and as such, she will strike females, attack children, hit below the belt, and even pull dirty tactics if those involved have some part in her enemy's plan. Additionally, she is quite inventive—coming up with creative attacks on the spot to launch against her enemies, catching them by surprise. Taking up boxing, Dzerve has a "pressure fighter" style; this requires her to stay in close proximity to an opponent, throwing an intense flurry of punches towards her foe and combinations of hooks and uppercuts. The reason why this style is so effective is because Dzerve is extremely durable; and swarming usually involves being hit with many over and over before the user can maneuver inside where they are more effective. When using boxing, Dzerve fights best at close range because more often than not, she's generally shorter and has less reach than her opponents and thus are more effective at a short distance where the longer arms of her opponents make punching awkward. Dzerve often uses her short stature to her advantage, employing a bob-and-weave defense by bending at the waist to slip underneath or to the sides of incoming punches. Unlike blocking, causing an opponent to miss a punch disrupts their balance, permits forward movement past the opponent's extended arm and keeps the hands free to counter. A distinct advantage that Dzerve has is when throwing uppercuts where she can channel her entire bodyweight behind the punch; her uppercuts hit like a truck; but essentially, the key to Dzerve's boxing style is aggression, endurance, and bobbing-and-weaving.

Physical Prowess

Other Abilities

Immense Intelligence: Despite the young age of sixteen, Dzerve has a genius-level intellect and is a natural prodigy when it comes to mechanics, being an extremely capable inventor and mechanic. In fact, it is stated on multiple occasions that Giselle and Dzerve are about equals in terms of intelligence. It could be said that Dzerve is the smartest character in the Sun Trilogy; her I.Q was noted to be over 720 in Daybreak: The Origin; and it is shown that at first, even Giselle had a hard time understanding the blueprints of her technology; in fact, the computer storing an upload of Dzerve's brain called Giselle an idiot for not being able to understand how to put more than one Luminous Driviar in a Soul Armour. Dzerve is also quite brilliant in science and physics. When dealing with matters involving the fabric of time and space or other theoretical situations, she can quickly come up with solid theories to how certain events will occur, even being able to construct vessels that can travel between dimensions while withstanding transdimensional interference.

Sejren Gene (セジュレン・遺伝子, Sejuren Idenshi): The Sejren Gene is a mysterious ability displayed by several members of the Sejren Family; it's described as a "bloodline awakening" not seen in any other family. It's noted to be a power that only manifests when a member of the family experiences an epiphany, reevaluating their life and coming to a conclusion of what exactly needs to be accomplished in order to overcome the turmoil in front of them. Doing so releases the body's natural limiters; granting them a physical prowess far above normal humans and even some other races, like great strength, speed, agility, accuracy and coordination. In consequence, despite the family's innate inability to harness magic, they are acknowledged as extremely powerful warriors, with many of them capable of overpowering strength-enhancing magic and outrunning speed-enhancing magic. However, the power seems to only awaken in a few members—but arises when the person experiences certain moments in their life that awakens it, and remains active for the rest of the user's life.

Soul Armour

Soul Armours (神鎧 (ソウル・アーマー), Sōru Āmā lit. God Armour) are specialized armours worn by various powerful warriors known as Soul Armour Knights (神鎧纏最高戦士 (ソウル・アーマー・ナイト), Sōru Āmā Naito lit. God Armour Clad Supreme Warrior); they are human or humanoid warriors who transforms from a natural human form using a Driver Belt into a superhuman form clad in the armour. The Knights secretly patrol their respective territories to protect civilians from demons. Armed with special equipment, the knights carry an eternal war to maintain the light over the darkness in the realm.



  • Originally, Dzerve wielded Proto-Gaiki, though despite being its creator more or less, the Soul Armour was unresponsive and refused to let her use its full power, thus remaining in its Imperfect Form; indeed, despite being the creator of the Soul Armours, Dzerve has only been ever counted as the Tachys' bio-match.
  • Tachys means "swift, quick, fast, rapid" in Greek; but more importantly, the word derived from it, tachyon, is the name of a hypothetical particle known as either simply a tachyon or a tachyonic particle that always moves faster than light, and most physicists believe they cannot exist because they are not consistent with the natural laws of physics. Tachys' own Tachyon Transmigration Knight Power is a reference to the hypothetical properties of the particle.
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