Katejina is a strong-willed seventeen year old girl from Woowing. Separated from her parents around the time of the destruction of her home town by the invading BESPA forces of the Zanscare Empire, Katejina joins the League Militaire with young Uso Evin. However, Katejina disapproves of the League's reliance on Uso as a gundam pilot due the mounting toll on his young body and mind.