Adriana is a 22 years old female from Mexico. As a child, she was locked in a freezer with her sister who died. She went crazy and became an arsonist that wanders the country setting things on fire.

You can find an examples of her voice here: https://blacksurvival.gamepedia.com/Adriana/Voice (as reference)

Your voice does not need to sound the same as her English, Japanese, or Korean versions long as you can portray the character well.