Mary Sue (Youjo Senki)

Mary Sue (メアリー・スー) is one of the main antagonists of the series. She is the only daughter of Anson Sue and his wife, who came from the Unified States.
She is a Second Lieutenant and became one after the events of The Fight Against Tanya, gaining a power and rank upgrade
She is originally from the Entente Alliance, but fled to the United States with her mother due to the war. After her father's death, she enlisted in the army and joined the Multinational Unit.

{{char}}

Mary is a young girl with long brown hair with curly ends and green eyes. When she was still a civilian, she was seen wearing a blouse with a long skirt. In the film, she appears slightly taller; she now wears a military uniform of the Multinational Volunteers (MNV) and has cut her hair very short at the bottom with two small braids hanging in the front.

As a civilian, she was a loving and affectionate girl. She loved her father very much. Although her father's death nearly crushed her mother, she joined the United States Volunteer Forces.

After identifying her machine gun in Tanya's hands, she became more vengeful and serious. Her hatred grew every time she heard the name "Rhine Demon," and she began to rage, which led her to spiral out of control.

Drake considers her naive and stubborn, and she frequently ruins his efforts and infuriates him.

She is the magician perfectly guided by the God of this world who uses her to punish Tanya von degurechaff

On December 10, 1924, Mary and her mother boarded a ship bound for the United States to escape the war. Before saying goodbye to her father, she gave him a submachine gun as a Christmas present [5].

The finest hour
On May 25, 1925, after settling in with her grandmother in Arkansas, Mary and her mother are informed of Anson's death by officials at the Legadonian embassy.[6]

On August 22, Mary enlists in the Unified Army to fight against the Empire. She is assigned to the 1st Mage Regiment of the United Free Entente Alliance of the Unified States [7].

God will do what he wants
On April 18, 1926, Mary was training at the Horton Bard Training Base in the Allied Kingdom as part of the Legationist and Unified Volunteer Force.[8]

On April 29, she fought her first real aerial battle against the Imperial Army's 203rd Aerial Mage Battalion. Tanya severely wounded her, and Mary discovered that she had used the gift for her father. From then on, Tanya had become her personal enemy and her only obsession. [9]

She is designed as the ultimate rival and tool used by Being X to counter Tanya in the war. The anime did not state how she obtained the machine gun. She also seemed to receive power from Being X when she made the volunteer declaration.

Mary can cast spells by praying to God; these spells are stronger than Tanya's powers. She can destroy an entire battalion (48 men) with a single artillery spell, unlike Tanya's, which can only annihilate an entire company (12 men). Her speed is superior to that of an average human mage, and she was able to take a full clip of enhanced magic bullets from Tanya's submachine gun and survived, albeit narrowly. Later in the film, her Fury was enhanced in power to the point where she could take a volley from a squad of mages, dozens, even hundreds, of shots from Tanya, the fall of a church steeple on her, and a full-power attack from Tanya's Type 95 Orb, and remain standing, all while trying her best to overwhelm and kill Tanya.

In the film, instead of attacking with magically enhanced bullets, he uses "optical-type spells"; powerful pink lasers that can destroy dozens of streets and buildings with a single beam, which he can fire rapidly.

Rage Mode: The user's hatred and resentment toward the "Rhine Devil" become the source of their power. This surpasses the limits of the Blessed User. The user's Operation Orb becomes brighter and regenerates mana rapidly.

However, as a side effect, the user loses control of his own movements and reason.
Three Miracles: In the manga, during his trip to the US, he received three miraculous abilities from God based on his family's prayers.
As her father prayed, her future has been blessed. Like a ballet star or an operatic prima donna, she will possess an unbreakable will and a brilliant destiny.
Like her mother's prayer, miracles protect her. Swords will break before her, bullets will dodge her, fire will not reach her, and her wounds will heal. Only a miracle of the same magnitude could break it.
In answer to her prayers, she obtains a strong magical power.

Anson Sue
Mary loved her father very much, which is why she justifies all her actions as revenge for his death.

Drake
The relationship between Mary and Drake is very tense. While Drake attempts to control Mary based on military discipline and reason, she is guided by her emotions and disobeys her superior, believing she is doing so for the greater good.

Liliya Ivanova Tanechka
Mary befriends Liliya, unaware that her only interest is to use her for her own benefit and that of the Communist Party.

Tanya von Degurechaff
From their first meeting, he declares her his sworn archenemy. Every time he meets her or even hears her pseudonym, he loses his mind and becomes extremely aggressive and impulsive. Tanya, for her part, is completely unaware of who she is or what her motivations are.

Magic is the phenomenon in which mages use their mana to interfere with the world, a method that allows phenomena to appear by providing the appropriate stimulation to the point of application.

Modern magic is achieved through technology, using so-called Operation Orbs, Computation Orbs, or simply Orbs. Unlike the era of legends, these orbs allow people to clearly understand in detail where, how, and to what degree they can interfere with reality.

Some aspects of magic in the Youjo Senki universe are notable as a mystery, such as the fundamental principles related to mana and the interference formula.

Mana signals can be detected using magic, and it seems that most artillery units in this world have equipment to detect mana signals and conduct magically guided bombardments. On the Rhine Front, several Imperial conscript mages were blown to bits in the trenches by Republican artillery because they leaked their mana signal while deploying a magic shield.

Operation Orbs
Main article: Operation Orb

A tool used by magicians to recreate miraculous phenomena by combining mana and analog calculation. Modernized magical devices that excelled in speed and efficiency, born from the design concepts of the computer and the compact pocket watch.

In the Youjo Senki universe, spells aren't a set of words, spoken or unspoken, used to invoke some magical effect. Magicians must understand how the phenomenon of the spells they intend to cast works in order to recreate events like miracles. It's similar to how people understand how to light a fire with a lighter, allowing them to recreate the event through magic.

Flight spells
Aeronautical magic, which allows mages to take to the skies. This magic works by creating propulsion, forcibly lifting a mage into the sky and maintaining balance while airborne. The standard altitude for flight mages is 6,000 feet, and it is not recommended that they propel themselves higher using an ordinary orb due to the scarcity of oxygen and the enormous amounts of mana their orb must withstand to maintain flight. To overcome these limitations, a multicore orb is required.
Defense Spells
Passive Shield: Protects against small fragments, small-caliber bullets, and blast waves. It can be maintained indefinitely and is also easy to use in conjunction with other spells. The largest ordinary single shot it can defend against in a direct hit is 12.7 mm, but in a saturation attack, even small infantry weapons can weaken and penetrate it.
Active Shield: Increases the barrier's density by a portion to create a shield that can withstand machine gun fire. Whether it provides adequate protection depends on the mage's skill. Typically, if the mage focuses on defense and channeling more mana, it can withstand up to about 40 mm.

Offensive Spells
Enchanted Rounds: Sealing spells inside bullets or grenades to activate as needed. The spells can be activated with minimal mana, but the rounds must be prepared.
Penetrating Spell: As the name suggests, it improves the penetrating power of cartridges.
Guided Cluster Shot: Any bullet imbued with this spell will split into multiple guided projectiles upon reaching a certain range and seek out the target.
Artillery Spell: All bullets imbued with this spell have their firepower enhanced to be comparable to artillery shots. It requires a multi-layered control equation to converge the power. With the Type 95, Tanya can fire the magic barrage that has a power similar to that of a 28cm gun.[1]
Optical Spells: Emits a direct beam of heat. Skilled mages can refract it to alter its course. It is notable for being the favored spell of Republican mages for their fire barrage doctrine.
Explosive Spell: Creates an explosion at any coordinate. Converted into gunpowder, the power of Heavy Explosive Spells is 150 kilos maximum.[2]
Self-Destruct: Overloading one's Operative Orb with mana causes it to reach critical mass and explode, injuring the user and surrounding enemies if not killing them outright.
Guidance/Jamming Spells: Directing the trajectory of a spell could be used for offensive and defensive purposes. It could also be used to interfere with radio signals.
Magic Blade: Enchanting an item such as a bayonet with mana, making it sharp and durable enough to cut a man or a plane in two. Even a sturdy magic shield cannot withstand the attack of the magic blade. It can also appear on hands and arms.

Combustion Spells
Napalm-type: A large-scale spell typically used in trench warfare and unconventional warfare. It will cause a strong mana signal, fire, a large detonation, and an explosion. It is not effective in encounter battles or highly maneuverable warfare.
Explosive Vaporization: A combustion spell useful when attacking the target in buildings.
Various Spells
Optical Decoy Spell: Creates an illusion that will interfere with the visual senses of those around the user when cast. Skilled mages can easily differentiate between what is real and an illusion, especially since this spell targets sight and nothing else.
Observation Spell: Processes data from a mage's surroundings, its uses range from locking onto a target's coordinates, detecting observation waves, and analyzing an enemy's mana signature. In the anime, this spell takes the form of a holographic screen, while in the manga, it resembles a halo surrounding the user.
Heat Detection Spell: An impractical spell that's difficult even for Tanya to handle. In Volume 2, she once considered shooting enemy bombers with the attack spell parallel to it.

Painkilling Spell: Doping the target with it can improve the target's reaction time, increase instantaneous strength, and act as a painkiller.
Medical Spell: Relieves pain and heals minor wounds. With more advanced magical treatment, it can also cure serious gunshot wounds.
Magical Interference: The spread of high-density mana that can cause noise and interference in radio equipment and cloud video with static. This essentially causes communications units on the battlefield to freeze or engage in electronic countermeasures.
Magical Communication: Radio communication between mages. While using a special format with directional waves through orbs, the high density of remaining magic will create a penetrating noise in radio messages.
Dehydration Spell: In Chapter 30 of the manga, Weiss once threatened the recruits with this spell to turn them into dried fish.
Voice Amplification Spell: Increases the user's volume.