This video is a little strange its basically a girl (Amane<~could have sworn it was a boy) walking around with a strange looking robot and then we see her lack of reaction when he robots taken away, its not translated, but then they don’t really say all that much in the video. As for the song i wasn’t sure if I would like it,  but the interesting beats grows on you. The song is called "River’s Edge" by the Japanese musical duo Nichika. Amanatsu is a CG anime short that is created by Kamikaze Douga.

The title of the project title comes from the name a robot created by a scientistist in a near future sci-fi story. The scientist, Souichi Makimura, also created something called Amon a perpetual motion machine that can sustain an energy dome that humans live in 20 years after the last of the energy wars and Environmental catastrophes had devastated the world. The story starts with Amanatsu (the robot) grabbing the key to the perpetual motion machine and starts off for the "end of the world".

Source: Anime News Network