Shiro Francois (also called Shiro Kabuto) is a supporting character from MazinSaga. He is based on Shiro Kabuto from the original series, but instead of being related to the Koji of his reality by blood, Francois is of mixed races from France.
Shiro is grateful to Sayaka and Koji for bringing him in when no one else would for his mixed ethnicity. He also idolizes Koji and Z and even proposed to be called Shiro Kabuto for the closeness and respect he has for Koji. This respect is so great, Shiro wants to become Koji's protege.