List will expand and be updated as more characters are introduced. Side/minor characters will not be included.
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Elisabeth "Elisa":
The host of the system, surrounded by mystery as most her memories are either missing or clouded. Originally human, currently a vampire.
Eris:
AI (Artificial Intelligence) that assists Elisa in navigating her system. Gives Elisa advice and a sort of 'therapist' for when Elisa is troubled.