>>532598434
Castoria was always bigger than original saber put them side by side, castoria was always bigger
Original saber is permanently 14 years old
Castoria is 15
Also they're literally different people, like literally she has no actual connection to Arthuria Pendragon at all, of anything castoria has more in common with Morgan than she ever did to Arthuria
Read LB6 again
Like the name is actually a coincidence, they aren't the same person from the start

You only see in her first ascension, castoria has very notable B or lower C cup breasts
While Arthuria saber has nothing