Origin
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Phym is a female humanoid Aragami who the protagonist and company encounter during a scouting mission. She happens to be present when an Ashland Aragami attacks the Caravan container. With a horn on her forehead, she has a non-human appearance. The protagonist and company’s encounter with this girl will have a major impact on their story. Phym first appears when the Ash Crawler Chrysanthemum's cargo bay is smashed open by the Anubis, revealing a collared Phym within. She is rescued from the Anubis' attack by the Protagonist, healing them from its Devour attack afterwards. In the subsequent days aboard the Chrysanthemum, she starts to view the Protagonist as a parent, calling them Mommy (if female) or Daddy (if male). She becomes close friends with everyone aboard the Chrysanthemum, learning new things about the world around her. Phym is the second character that she was Aragami, the first is Shio. When using Gestures, Phym will copy that same Gesture.

God Eater
The year is 2071. Humanity has been pushed to the brink of extinction following the emergence of man-eating monsters called "Aragami" that boast an immunity to conventional weaponry. They ravaged the land, consuming almost everything in their path and leaving nothing in their wake. To combat them, an organization named Fenrir was formed as a last-ditch effort to save humanity through the use of "God Eaters"—special humans infused with Oracle cells, allowing them to wield the God Arc, the only known weapon capable of killing an Aragami. One such God Eater is Lenka Utsugi, a New-Type whose God Arc takes the form of both blade and gun. Now, as one of Fenrir's greatest weapons, Lenka must master his God Arc if he is to fulfill his desire of wiping out the Aragami once and for all. The monsters continue to be born en masse while the remnants of humanity struggle to survive the night. Only God Eaters stand between the Aragami and complete and total annihilation of the human race.