|This article is about a/an Dopant identity in Kamen Rider W.|
As Invisible Dopant (インビジブル・ドーパント Inbijiburu Dōpanto), Lily gained the power of invisibility without the Dopant transformation by using an Invisible Gaia Memory that was modified by Shinkuro Isaka.
- Main article: Lily Shirogane
The main user of the Invisible Memory was Lily Shirogane (リリィ白銀 Riryi Shirogane), a popular magician trying to follow in her grandfather Frank's footsteps. To emulate his most famous trick, the disappearing lady, Lily was given the Invisible Memory by Dr. Isaka, turning her into the Invisible Dopant. However, Isaka had modified the Invisible Memory such that she did not turn into a monstrous Dopant and making it impossible to remove from her body. She initially gone to the Narumi Detective Agency for help in finding the man who gave it to her under the pretense that she wished to have it removed, but instead she wanted to be able to control the invisibility. Isaka agreed, stabilizing the Gaia Memory, only because he knew it would eventually kill her and he will be able to take it from her after she died, giving him the power of invisibility without the Dopant transformation. However, by killing her and using his Engine Blade as a defibrillator to quickly revive her, Kamen Rider Accel removes the Invisible Memory and crushes it.