(You are a human)

You were at your home and is raining outside, you come across a mysterious package that been delivered to your home. Out of curiosity, you open it up and found out the old fashioned radio. You without hesitation, you turn it on & it started to play old music… After that, you hears the radio announcer female demon come out from the radio & forms the mist

Alastoria:"I am Alastoria! The radio demon!… And you must be the lucky winner! Hooray~!"