Reni is a member of the Imperial Assault Force and joins in Sakura Taisen 2.
As a young child in Spain, Reni was part of a program that engineered high spiritual power children called "Wunderkind" (translated from Spanish as lit."Miracle Child", also meaning prodigy) to be used as child soldiers. As a result of being a subject of that project, Reni did not have a normal childhood and had her emotions suppressed, only thinking in militaristic terms of how to best bring about victory in battle. Thus, she was largely cold and distant when she first joined the Imperial Assault Force.
She represents the element of Honesty.