At the end of OPUS: Echo of Starsong, what if Red Chamber was never hit by a space debris? Love story of Eda and Jun. This is for the people who finished the game. If you are not the one, I recommand you to go and play if by yourself.

What if Jun convinced Eda to not sacrifice herself? How will Eda handle the weight of the danger she put everyone in? How will Jun handle his responsibilities regarding his clan? Will Remi go on that date? Most importantly, will Eda take Jun to the field she promised she'd take him to?

After being abandoned by Eda, Jun and Remi recover from their ordeal.

To each of them, a story of their own. Life dealt them a hand, from one point to another. Bounded by the ties of Starsongs. This is a story of a chance, an echo if you will. Follow their journey as they battle fate. As they thrives on towards a new hope, a new future.