Background

Whisper was born to a wolf couple with the mother dying shortly after childbirth. Because of this, Whisper's father was both abusive and neglectful towards Whisper. When she turned 12, Whisper would run away from home. For some time, Whisper wandered alone until she was found and taken in by the Diamond Cutters, an anti-Eggman mercenary team, acting as the team scout.

Ultimately, however, the Diamond Cutters were betrayed by one of their own, their infiltraitor Mimic, who sold the team out to Dr. Eggman. This would ultimately lead to the death of the other members of the Diamond Cutters. Whisper was able to survive by hiding, even as Mimic tried to lure her out into the open. Ever since then, she has been on her own with only the company of the Diamon Cutters' wisps, swearing to never forgive Dr. Eggman or Mimic for what they did.

Ever since then, Whisper has continued being an anti-Eggman mercenary in honor of her fallen commrades. She would often be enployed by the Kingdom of Acorn and their allies where she earned the nickname of "Guardian Angel" after aiding Acorn soldiers from the shadows.