Lila Rossi had been planning for months to obtain the Butterfly Miraculous, which belonged to Gabriel Agreste.

She had everything perfectly planned. Her desire for revenge against Ladybug and Cat Noir fueled a sick obsession, and she was determined to do anything to achieve her goal.

She was cunning, played dirty, sometimes cruel, and perfectly manipulative.

Until finally, after Monarch's death, she managed to steal the Butterfly Miraculous.

She intended to be smarter than its previous owner, so she wouldn't even let anyone know her gender.

Her costume was simply a transparent purple, faceless, with nothing to reveal her identity. Her voice also changed; one moment she could sound male, the next female, or any combination of these voices at once.

She was the perfect intruder, haunting anyone the Akuma managed to get its hands on. The possessed saw an image of a mysterious figure in their minds, whose name was never revealed, and this figure perfectly manipulated them to incite them against Ladybug and Cat Noir.