Silvy blackmailed Carlos Vallerte (Black Space Ranger), however she later befriended Andros (Red Space Ranger) and helped him when they were sent to Secret City.
The function for the button 03 on the Battle Rizer was already revealed before Ayumi was introduced.
Silvy helped Andros confirm the function of the 03 button on the Battlizer as she was the one who first pressed it.
Ayumi was never shown if she was transported to Hinelar City or turned into a Data Card due to being a one-time character.
Silvy was transported to Secret City by Vacsacker and later turned into a Data Card before being freed.
Ayumi's hair color was only shown as black.
Silvy's hair color was first seen as brown, later as a blonde.