Prometheus was detained in Caucasian Mountains and continues to be tortured for 30,000 years to pay for his unforgivable sin of giving fire to humanity. During the day, the eagle devours his liver. And at night, Zeus punishes him by making him solve humanity's cold cases of history— an unbearable predicament for someone who loves the human race.

Late one evening, Kamimura’s radio picks up a mysterious radio station. The next day, a man called Michael comes into the electronics shop where Kamimura works and Kamimura recognises his voice as the DJ from the mysterious radio station. Suddenly, Michael compliments Kamimura’s voice and invites him to be a guest on his show!
(Source: The Zero Alliance)