Rival Schools: United by Fate: Tiffany Lords

A wealthy student from Pacific High, Tiffany Lords joined Roy Bromwell in his investigation of the school kidnappings because she had a crush on him. Like her classmates, she was captured and brainwashed by Justice High, but is eventually freed by the students from Taiyo High. At the end of her story in Rival Schools: United by Fate, she returned to the United States with Roy and set out to train as a bodyguard after Roy began his studies in Politics.

Awesome Tiffany by Brazilian cosplayer Fabiane! I think this is my most favorite cosplay of hers in her gallery, because she looks so much like Tiffany! Thanks to Emily for suggesting this!