On This Planet Where This Prolonged Heart Shines

Beauty hidden within desolation. Upon arrival on a planet scattered with the mass grave of a war long fought after receiving a weak SOS signal Caelus finds himself face to face with the remnants of this forgotten society. Though the iron cavalry is long gone by now due to losing their battle against the swarm, their spirit lives on in one robot storing their history.

This story is loosely based on the events depicted in the song Amara: The Great Intelligence by Sasakure.uk. if you haven't listened to it you definitely should.

I am the original author, I am cross posting this from Ao3.