Dead or LIVE!

is a japanese manga series written by Yuuki Eishi. It began serialisation in the February 2011 issue of Manga Time Kirara Forward.

The series was released under 2 volumes from July 2011 to January 2012.

Synopsis
Orphee-a race that would die if you didn't listen to music all the time. For the Orphees, the music that was essential to their survival was no longer as valuable as the air. Meanwhile, Noboru, an Orpheus boy who has survived from the silent world, meets Sakura, a girl who looks just like the "singing goddess" that she has been seeing since then.

(Source: Amazon JP - Translated)