i highly suspect AA is kinda bullshitting with the "i am much older than you" thing. it reads kind of like she's basically saying "i'm older than you by a couple of days/months". also because man it'd be weird to have a bunch of 15 year olds and then one like, 17 year old in this group.

i also think ly'lac's metaphorphosis could perhaps be more tied to the game, something that happens upon godtiering like how trolls get wings.