3Hz

TMDB score: 7.0/10

What if by listening to the past, you could save the future?

After Felix' walkman gets fixed with clock parts, he is able to hear the past with it. And he slowly finds out his mom's death wasn't just caused by a normal disease. With help from his friends he starts to investigate and discovers the devastating reason for his mom's death.

Selected season 1, episode 1.