Both pairings involve a woman who is born into royalty and a man who is a criminal hoặc outlaw.
Both couples involve a hero and a redeemed villain.
Both couples are một giây chances at tình yêu for all characters involved. Emma's first tình yêu was Neal Cassidy while Killian previously loved Milah. Regina previously loved Daniel while Robin was married to Marian.
Both pairings were confirmed as True tình yêu bởi means other than a True tình yêu Kiss. Regina was led to Robin using pixie dust, while Emma and Killian passed the Underworld's test to access the ambrosia and also reunited using a pixie flower.