Unlike viruses from other media, it does not kill the user/host in contact, but instead it gives supernatural magic/ability to use a weapon-transforming process known as "Drive".
The Virus divides the infected into two categories: Liberators and Extars.
When they become aroused, Extars are able to transform into a specific weapon form, while Liberators have the capability of wielding these powerful weapons.
As such, the infected, known as Valkyries, are often paired up with their most compatible partner.
Limitations[edit | edit source]
According to Kasumi, the A-Virus was a non-lethal viral system that can only infect some girls.
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