Trująca Gaia used to be a ruthless assassin with an unparalleled speed of action. In one of the missions, however, she got lost in the poisoned forest and was killed by an ivy. While she was giving up on hope, she found her body mysteriously merged with the ivy. She was thus brought back to life by the same plant that killed her and has owned the power to control poisoned ivies that grew from her body since then. After resuscitated, a more intimidating killer was made; a preditor that no one can escape from. Binding her preys with the ivies, she took their lives swiftly by beheading them with her metal jaws. Her existence soon caused panic amongst local villagers. People thus named her Trujaca Gaia (poison Gaia).