The Secolo Rivalry, which is roughly translated into "Century Rivalry", is a literal century long rivalry between the Cranio Famiglia and the Giovani Famiglia. Two extremely powerful mafias with influence that spreads worldwide, and with no Famiglia matching them in terms of size or power. Both families have vast amounts of power and influence under their name and are easily some of the most powerful, if not the most powerful families. With both of them only equaling each other, and the main reason for their rivalry in the first place. Even with the vast amounts of powers that the bosses and their generations hold, it is said that the current Tenth Generation is said to be even stronger than that of the previous generations and bosses. However when faced with a dangerous situation, both families have displayed the ability to stand united and repel attack from opposing families, living up to their titles as the best and strongest of all times.