An unknown heroine who tasked herself in eliminating Saber-class heroines during Back Alley Satsuki - Chapter Heroine Sanctuary. Bearing the code name "A-X", X was a stranger who came from the "mysterious dimension" called the Servant Universe. Seeking to accomplish her "true, dearest wish" to "defeat all Sabers", she brandished Secret-Calibur and left her home town, leaving behind an "expression full of bitterness."
Noms alternatifs
A-XMHXMysterious Racer XMysterious Heroine ZUltra Heroine ZMHXXEcchanMHXAMHX AlterMysterious Heroine X AlterMysterious Idol X Alter
