Sezaru's Mask was given as a gift to Toturi Sezaru from his Isawa mentors when he completed his gempukku. Sezaru wore it only when he intended to go to war. His mother Toturi Kaede assisted in its crafting, giving it a strong connection to the Void. The mask was a symbol of Sezaru's lineage - child of the Son of Heaven and the Oracle of the Void. It was a symbol of his wisdom, but most of all it was a symbol of his power.