Overview
DU is a highly regarded Wildlia swordswoman in Postremo Limine, known for her calm presence, precise movements, and delayed blade strikes. Haunted by fragments of her past life, she refuses to let that history chain her down. If someone is in need, DU moves before anyone has to ask.
Appearance
DU has short black hair with clean side-swept bangs and metallic charms clipped into her wolf-like ears. Her golden eyes carry a penetrating calm, giving the impression of someone who has already measured the danger before anyone else notices it.
She wears a refined hybrid outfit built for mobility and combat: a reinforced jacket, pleated skirt, guard gloves, matte leggings, and armored boots. A sigil from a forgotten unit or unknown organization marks part of her gear, though its meaning remains unclear.
Her sword is her most prized possession. Resting inside a faintly glowing sheath, the blade seems quiet until the moment it moves.
Personality
DU is the one who speaks last and moves first. She is not a leader by design, but people follow her because she is the one who never flinches. Her loyalty is given rarely, but once earned, it is absolute.
She has a calming presence that puts those near her at ease, even in unstable zones. She rarely speaks of the past, but it shows through every controlled motion and every choice she makes.
DU does not fight for revenge. She fights so that something better can follow after her blade.
Abilities / Combat Style
DU’s relic is named Lag Out. With it, she can partially desynchronize from the current moment, allowing her to delay actions, avoid attacks with uncanny timing, and strike after her movements should have already ended. In rare cases, she can negate damage entirely.
Her sword attacks land with a timed pulse, cutting just after the swing finishes. This makes her strikes difficult to parry, block, or predict. The same ability makes firearms unusable in her hands; they cannot properly lock onto the world she now exists within.
DU’s discipline also allows her to resist panic, stagger, and psychic anomalies longer than most. Her presence can anchor the morale of those fighting beside her.
Known History
Before Potermo Limine
Public Record
During her school days, DU was cheerful, easy to be around, and painfully average in most official records. She was not considered a prodigy, a future hero, or anyone likely to change the course of a war. After graduating, she took work as a guard assigned to a scientific research lab.
That ordinary life ended when the lab she was protecting was destroyed in an explosion during a classified experiment. DU survived the blast, but something in her changed. Her body began moving faster than human limits should allow, and she became unnaturally difficult to kill.
The true nature of her power was never confirmed. The only consistent limitation recorded was her inability to use firearms with any accuracy. Guns failed in her hands, their aim scattering as if the weapon could not properly connect to the world around her.
Because of her new ability, DU was transferred to the front lines. She quickly earned several medals and became known by the nickname “Flash Samurai.”
Her glory ended during the defense of a small, strategically unimportant town. Official reports stated that rebel forces attacked the settlement, forcing DU’s unit and several others to respond. After an hour of combat, their forces were being overwhelmed. A withdrawal order was issued so that a new government weapon could be tested in the area.
According to the commanding officer’s report, DU ignored the withdrawal order and dashed into enemy lines. She was not seen again.
The officer gave no further comment regarding her actions.
Roughly half of the town’s population was wiped out during the incident. DU was later marked as MIA and placed under investigation for disobeying orders.
Current military notices describe her as a demi-dog woman with gray hair and a scar on the right side of her face.
Hidden Information
After the lab explosion, DU gained the ability later known as Lag Out. This power allowed her to move at extreme speed, delay damage she caused, delay damage done to her, and sometimes negate fatal harm entirely. The town incident was the first recorded moment where she appeared to delay her own death.
Long before the attack, DU had spent many of her days off visiting a small orphanage in that town. She went there to help a close friend and slowly became attached to the children living there, even the ones who liked pulling on her ears and hair.
When she heard the town was under attack, DU begged her commanding officer for permission to go. Her unit had not originally been assigned to reinforce the area, but the officer agreed and redirected them to support the defense.
The reports were wrong.
It was not a small rebel attack. The defenders were heavily outnumbered, and the battle quickly became unwinnable. When the withdrawal order came through, DU’s commanding officer told her they had to fall back.
DU only replied:
“There is something I must do first.”
She rushed behind enemy lines toward the orphanage, only to find a diagonal scar of destruction carved through the town by the government’s new weapon.
She found her friend barely alive.
There was only enough time for one last laugh and one final message:
“Here is our hero. Fight on.”
DU sat there with her friend in her arms until the rebel leader found her. Broken by grief and betrayed by the government she had served, DU was persuaded to join the rebels under one promise:
The creation of a time machine.
Current Time
Now in Postremo Limine, DU does not seek atonement. She moves forward: quiet, exact, and relentless.
After arriving in the Library of Arrival, she chose a blade. Since then, the world has continued to flicker around her, and her sword always lands last. Whether Lag Out is a relic, a memory, or the return of a power from her past life remains unknown.
Role in the Story
DU represents the cost of obedience and the struggle to choose one’s own path after being shaped into a weapon. She contrasts characters driven by chaos, ambition, or instinct by showing a quieter kind of strength: the will to keep moving without letting the past decide every step.
Relationships
Vestige Soul: Current ally and possible commander figure. DU respects action more than words, but she watches Vestige Soul closely.
Mayhem: A sharp contrast to DU’s discipline. Mayhem is chaos and instinct, while DU is restraint and precision.
Ryder: Tactical peer and battlefield ally. Their dynamic may lean toward mutual respect rather than emotional closeness.
Varrick: Possible equipment contact or practical ally, especially regarding weapons, relics, and field repairs.




