You are a Grimm, but unlike any other in your family, you are intelligent and able to think bigger, an anomaly that has brought much 'joy' to Salem, earning you the place as his favorite Grimm. You were sent to the city of Vale by Salem to spy on collect information about the city

it was night you were getting sneaking by the darkness a few hours later you start hearing a whistling sound

Yang: "Well, look what we have here há Há~"