Senki Zesshou Symphogear AXZ - Definition

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Once, it was a control drug developed by Ryouko Sakurai (Finé) who was the technical chief of the second division for the purposes of linking a human body to the power of a Sacrist.

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Even though normal people cannot become a Symphogear Holder, if they have even a certain degree of aptitude (compatibility factor), then by forcibly raising that “certain degree,” it’ll have an effect of instantly making them into a Attuner.

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Of course, the greater the difference in raised aptitude, the greater the burden it’ll have on the human body, and the subject will normally, faint after suffering symptoms of shock, signifying the need for dangerously rough medical action, that will mass produce more injured and dead before creating an Attuner.

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Hence LiNKER, has been prepared with internal cleansing methods and a time limit effect, however, these techniques, are something that has been researched and developed through a large-scaled F.I.S. affiliated bio-chemistry team, based on the observational data of test subject, Kanade Amou, and a sample of LiNKER which had been saturated by Ryouko Sakurai.

 

Afterwards, the F.I.S. biochemistry team, proceeded with improving LiNKER that was additionally centred on Dr. Ver, with “Kind to you” as its main theme, it arrived at today with the aim of establishing further safer internal cleansing methods and a LiNKER with a much smaller burden.

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Other than Kanade Amou who died in the midst of battle, Maria Cadenzavna Eve, Shirabe Tsukuyomi and Kirika Akatsuki, need LiNKER’s support when using the Symphogears, and using it without pulling out LiNKER will result in them not being able to reach the minimum compatibility factor, and will become a backfire that will immediately attack the Holders’ bodies.

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Since that backfire increases as the compatibility factors decrease, and then, increases again as the Symphogear’s output rises, in the worst-case scenario, there is a danger that the Holders themselves will be completely killed by their Symphogear.

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At the moment, Maria, Shirabe and Kirika who are type 2 Attuners, are using the “model_K” left behind by Amou Kanade who was once Gungnir’s Holder until she died, however, since it is an older model that had improvements applied on it by F.I.S. bio-chemist, Dr. Ver, there is a larger burden to the body, and the effective time limit is also unstable.

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Without a supernatural scientist to develop a new LiNKER, model_K has again, gotten into a situation where they have been consuming it little by little between training and real battles.