Definitely changing Gwen's name to Alex as She looks and acts like her from eternum, Changing the mc's name to Orion fits too cuz he looks like a pre-mature Orion, and As for Sky she looks like Roon, Aine Looks like Rika to me, Emma, Aine and Lily are best for Vanilla, insane childhood friend route when you only go with Emma, Freya and Moon gives me good vibes, feels familiar actually... Maybe this is a Eternum Alternate universe, if not a Prequel or Reborn. Holy Naomi gives Nova vibes, maybe it is her as they share the same First letter name.