Shion Aries (牡羊座のシオン)
Background
Shion is one of last survivors of the race that inhabited the lost continent Lemuria (also called Mu). Due to this, he has a life span much larger than that of a normal human, what allowed him to live more than two hundred years.
He is a close friend of Libra Dohko, the only survivor of the last generation of saints together with Shion, and the master of Aries Mu.