She is one of the protagonists of Gate - Thus the JSDF Fought There. A member of a nomadic tribe called the Rurudo, she is an archmage and sorceress of the human race, the second disciple of Cato El Altestan, the elder sage.
Lelei is generally an emotionless girl, with her face constantly fixed in an expressionless look. She is usually calm and silent amongst her friends and would always speak in a collected way. She rarely raises her voice, even in dire situations.