|Rank||First Lieutenant (AST Team Leader)|
|Novel Debut||Volume 1|
|Anime Debut||Episode 01|
Ryouko is a young woman in her mid-20s. She has long, glossy black hair which is tied into a ponytail with some bangs left out into three separate parts. She also has a pair of black eyes.
She is often seen wearing her dark cyan military uniform with a hat on top of her head whenever she is at the JGSDF base and wears the AST's wiring suit during combat. In Rinne Utopia, Ryouko wears a red T-shirt underneath a white, long-sleeved shirt with unfastened collar.
Ryouko, for the most part, is often childish and gets angry when annoyed. Despite this, she is dedicated to her position and prioritizes civilian safety during spacequake attacks, and was outraged by DEM wizards not following these same beliefs.
- Light Novel
- Volume 1-4, 6-7, 10, 13, 17