honestly it has no clue… maybe some mutation of astrea that popped into its head at some point? that name kinda Started Existing for it when it had an offshoot in its identity that was kinda plural-like but not really, and has since seemingly resolved itself??? idk its brain is really fucking weird. like every now and then everything about its personality and identity change but it has the same memories and experiences, and those previous identities just never really show up again

anyways. long answer to really just say. no idea, it just started Going By That one day and it stuck