From Wikipedia, the free encyclopedia. Valkyrie Drive: Mermaid , the anime portion of the franchise, aired in Japan between October 10, and December 26, , receiving an uncensored broadcast on AT-X. Just as the two are cornered, Mirei once again uses arousal to transform Mamori into the sword Liberator Arm, allowing her to defeat Saejima in an instant. However, Mirei arrives in the nick of time, managing to overcome her opponent's mental attacks and defeat her. Undergoing a Drive once again, Mamori and Mirei escape to the beach, where they properly introduce themselves to each other.
Esperanza. Age: 26.
Meanwhile, Mirei recalls when she was in the same organization as Momoka, having been exiled after refusing to kill others and later sent to Mermaid due to possessing the Armed Virus.
Dahlia. Age: 29.
Unable to drive with Mamori following the ordeal of her attack, Mirei unleashes the true ability hidden in her body to fight the Arm, but is still overpowered by it. With Mirei knocked out, Mamori has Akira drive with her in order to stop the terrorists, briefly exposing her identity to Mirei before leaving the scene. However, Momoka uses Mamori's Valkyrie ability to absorb other girls into her arm and become stronger, overwhelming the others in a single shot and absorbing them.