Legends about the previous Heroes of the Shield became obscured from the records of Melromarc, potentially out of negligence or omittance.
There have at least been two confirmed Shield Heroes, the first one and his eventual successor Naofumi. It is not known how many Heroes of the Shield there have been, with some indications that there has only been one, and some indications that there were in fact many. The Shield Hero, alongside the other three Legendary Heroes, has been summoned repeatedly through history to defend against the Waves of Calamity.
