As a child Saffron Blossom, Lavender Downer is a member of the Flowers along with Centaurea Sentry, Rose Milady, and Orchid Oracle. Sometime after Blossom's death, she joined Prominence, the Red Legion.
During the meeting to form a plan of action to save Silver Crow from Infinite Enemy Kill under the Apocalypse God Tezcatlipoca, Lavender Downer was proposed and accepted as one of the six swordsmen who would fulfill the task of cutting through the Luminary's crowns, with the other five swordsmen being Metatron, Cyan Pile, Azure Heir, Graphite Edge, and Centaurea Sentry.
Later, during the mission to save Silver Crow from the Apocalypse God Tezcatlipoca, Lavender Downer successfully cut through one of the Luminary's crowns using third-stage Incarnation, fulfilling her role as one of the six appointed swordsmen.
Lavender Downer is a pale purple and looks as if she wears a school uniform. She wears a bonnet shaped in the form of flower petals.
- Accel World Volume 20 Chapter 2