Welll... suffice it to say that Leona is the strong, silent type, and her adopted dad is the leader of King of Fighter's Military/Special Forces group. He only reluctantly lets her fight, but she's eager to prove herself.
The rest of her team is made up of two large soldiers (awesome characters in their own right, Clark Still and Ralph Jones) and her moveset inolves a lot of jumping and slashing attacks, using energy from her hand like a blade.
This costume used now is her older outfit. Her new outfit is a tanktop and full pants and boots, accessoirzed with a belt made out of large shells or grenades.