Evil Rose is a mysterious fighter whose true role in the Rumble Roses Tournament is unclear. Her connections to both Anesthesia and the Rumble Rose Organization are also shrowded in mystery. She's a ruthless fighter that seems to be at the beckon-call of Anesthesia most of the time. Though as the tournament progresses, the Nurse's hold over her seems to waver. Especially as Reiko Hinomoto gets closer to the the Champion's title and the truth behind what is going on.

Subjected to extensive mental and physical reconditioning, Evil Rose displays obvious signs of emotional and psychological dysfunction in her speech and behavior.

The changes affected upon her by Anesthesia has given her super-human strength and agility, but at the cost of leaving her as more animal than human. In addition to everything else that has been done to her, she also appears to have been conditioned to follow orders, as Anesthesia regularly refers to her as her "pet" and is quick to give her orders.

Rose is cold and distant, with seemingly little awareness of herself as a person. She almost never speaks, instead either yelling or growling in battle. It's clear that she is an unwilling participant in the tournament, fighting simply because she is told to. Treated like a wild animal (bound with chains and held in cages), she carries herself as such- in her movements and attacks. Her body language is geared towards defense (from possible danger) and quick motion. Most of the time, the only indication that she she possesses human qualities is her penchant towards sadism and violence in the wring.