 As a child, Souji is portrayed by .ZECT is a mysterious organization that seemingly acts in order to destroy Worms, later revealed to have founded by the Native Worms who created both ZECT and the Masked Rider System to eliminate the Worms before conducting Negishi's own plans for humanity.is the son of ZECT's leader Riku Kagami, unaware of the organization's true agenda while fighting for the betterment of humanity as .