Isabella worked as a caretaker in Grace Field House, taking care of the orphans that resides within. Although initially appearing as a loving and affectionate mother towards the children, she actually has a twisted nature and shows much detachment to their tragic fates.

Isabella is a fair-skinned, tall woman with a pair of deep purple eyes. Her dark brown hair is tied into a bun that hangs down onto the back of her head. She wears an attire which consists of a black dress with a white blouse underneath it and a white apron over it. She has the number "73584" tattooed on the right side of her neck.

The present Isabella is a sharp-witted, ruthless, cold, manipulative, and deceiving woman. But in her Mama persona, Isabella is capable in putting on a motherly, selfless, and kind-hearted facade whenever she is around the orphans in Grace Field House, and hence was able to earn the trust and love from her foster children.[9] Isabella's behavior is very mercurial, capable of switching between seemingly true affection for the orphans to extreme loathing and threat of violence towards those who defy her. Isabella was unhesitant in taking down those who stand in her way and root out the children that knew of Conny's death, both emotionally, verbally, and even physically.