Dual Act

Dual Act is another technique used alongside ones' Hundred, which is rarer compared to even the Full-Body Armament.

Description
This is another method of utilizing a Hundred, which involves simultaneously deploying another one at the same time. Dual Act is a far more difficult and rarer technique when compared to even the Full-Body Armament due to how difficult that it is to activate, the only person who is shown to be able to utilize this is Douglas Edward Wenz.

Hayato Kisaragi later achieve Dual Act using his recalibrated Hundred, which was split in half Douglas, however, he could not only achieve Full-Body Armament but also manifested a second white-colored katana and armor covering that specific arm resembling Emilia's Arms Shroud due to his heightened emotions and desire to protect both her and his loved ones.

Though a lot like his full armament, Hayato couldn't utilize his Dual Act without his variant powers, he had later mastered it enough to where he could use it without his variant power.