The Echo Line

あらすじ

The Echo Line is a mobile service number that be used to check the audio quality for phone calls. No one will answer you, besides the echo of your own voice. Akira uses this echo as proof of his and the world's existence. These calls, alongside video recordings of day-to-day life, make up his "anchors", helping him stay grounded. That is until someone else answers from the other side of the Echo Line.