|Spoiler Alert: This page contains spoilers. Read at your own risk.|
|Full Name||Maimilien Device|
|Purpose||Magic Engineering Equipment Manufacturer|
|Associated Individuals||Paul Maximilien|
Maximilien Device (マクシミリアン・デバイス) is an American Magic Engineering Equipment Manufacturer.
Paul Maximilien is the President of Maximilien Device. 
- Russ Type-F : Speed Shooter 
- Hongo Mia (本郷 未亜) - aka Michaela Hongou, a saleswomen, whom was sent as an agent by the USNA to spy in Japan, in order to ascertain and acquire information on the unidentified Strategic-Class Magician.