Leila is the grandmother of Super Sonico and serves as her primary caretaker, as Sonico’s parents are largely absent. She owns and manages the izakaya restaurant Zeppelin, where she employs Sonico as a waitress. Despite her age, Leila is talented and resourceful, maintaining connections with higher authority figures. She is fluent in English and still drives, notably a Messerschmitt KR200. In her younger years, she bore a strong resemblance to Sonico, with similar long hair and body type. Her personality is kind and gentle, and she shares a warm, supportive relationship with her granddaughter. Leila’s role in the story is that of a stable, nurturing figure who looks after Sonico while encouraging her pursuits. She does not undergo significant personal development over the course of the series, instead functioning as a constant source of care and guidance.