Emilia, a young half-demon, appears in the prologue OVA for the first "Generation of Chaos" RPG. She lives peacefully in a local town, working as a seamstress alongside her younger human sister. Her life shatters when humans, motivated by fear of demons, set their home ablaze, resulting in her sister’s death. Following this tragedy, the demon Ashley Loff approaches Emilia, attributing the attack to humans and urging her to fight back. Ashley frames this call to arms as a necessary survival tactic against prejudice and a means to prevent further suffering. This encounter becomes the catalyst for Emilia’s involvement in the game’s broader conflict.

The OVA structure heavily prioritizes another character’s story, Chiffon’s, with Emilia’s segment comprising roughly one-third of the runtime. Her background, motivations, and subsequent development consequently receive limited exploration compared to other protagonists. Her story primarily functions as an introduction to her role in the game’s events, establishing her personal tragedy and the external manipulation that pushes her toward conflict. No additional official media expands upon her character arc, relationships, or fate beyond this introductory premise.