Himeko was once a delinquent feared far and wide, the legendary yankee Onihime. She's totally reformed now, but starts to hear odd rumors that "the Onihime has started going on a rampage again."
And wait, is your voice different?
¿Y tu voz no suena un poco diferente?
¿Y tu voz no suena un poco diferente?
E, espera aí, 
sua voz está diferente?