Canon Memphis, later Canon Hazama after her adoption by Youko Hazama, hails from Dublin, Ireland, a city annihilated by Festum attacks that cost her family and friends. Rescued by Michio Hino of the Human Army, she underwent military training, becoming a seasoned Fafner pilot at a young age. She initially operated the Babalon Model under Human Army command, her early life defined by combat and rigid adherence to orders, leaving her emotionally detached and unable to pursue personal desires.

Transferred to Tatsumiyajima Island, she encountered a community living in relative peace, a concept that initially confused and offended her. Over time, exposure to the island's lifestyle and relationships with residents facilitated her emotional growth. She formed friendships with fellow pilots like Sakura Kaname and developed deeper bonds, particularly with Kazuki Makabe, whose safety she later prioritized by attempting to prevent him from piloting Mark Sein again. Her assignment to live with Youko Hazama marked a turning point, as she gradually opened up and embraced the possibility of peace.

Her role evolved significantly after joining Tatsumiyajima's forces. During Operation Azure, she temporarily piloted the Mark Drei. In *Heaven and Earth*, she received her dedicated Fafner, the Mark Dreizehn, symbolizing her integration into the island's defense team. By *Exodus*, she exhibited advanced synchronization with her Fafner, gaining the ability to perceive future events. This power accelerated her assimilation phenomenon—a physical degradation caused by Fafner operation—manifesting in temporary eye color changes and eventual life depletion.

In *Exodus*, her character arc reached its zenith. She utilized her foresight to develop the Einherjar-model Fafners and devise countermeasures against assimilation, crucial advancements for humanity's survival. Her efforts culminated in self-sacrifice; after ensuring the delivery of her research, she succumbed to assimilation and vanished. Her legacy persisted in *The Beyond*, where she appeared alongside Shouko Hazama and the deceased dog Chocolat in visions to characters like Kouyou Kasugai, reinforcing her enduring impact.

Physically, Canon possesses red hair and blue eyes. Her hair length varied, longer in *Heaven and Earth* and shorter in *Exodus*, where she also wore a blue headband. Her personality shifted from rigid military protocol adherence to valuing personal bonds and protecting her newfound home, demonstrating her transformation from a traumatized soldier to a guardian of peace.