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."
I'm gonna wipe you out and then go home.
Las aniquilaré y luego me iré a casa.
Os aniquilaré y luego me iré a casa.
Vou acabar com 
vocês e ir para casa.