Episode: 1x01 | Airdate: Sep 10, 2018 (8 min)
Year 2053, a girl continues to yearn the blue sea, which is full of childhood memories with her mother. Despite countless reasons not to, she finally decides to go find the sea with the help of AI.
Episode: 1x02 | Airdate: Sep 13, 2018 (9 min)
Year 2053, the girl wakes to find herself in an abandoned subway station. There, she hears the story of an old station attendant waiting for a train that stopped running two decades ago...
Episode: 1x03 | Airdate: Sep 17, 2018 (8 min)
The weather caster struggles with his ongoing life and makes a drastic decision to quit.
Episode: 1x04 | Airdate: Sep 20, 2018 (10 min)
The girl meets Ki Young on a bus to the sea and they finally arrive at the shore together. What has led them there? Will they find what they were searching for?
