Harmony

Harmony is a 2015 Japanese animated science fiction film directed by Michael Arias and Takashi Nakamura, animated by Studio 4°C and based on the novel of the same name by Project Itoh. The film was released on November 13, 2015. A four-volume manga by Fumi Minato based on the novel was published by Kadokawa Shoten in Newtype from 2015 to 2019. Two other anime films based on novels by the same author were released: The Empire of Corpses on October 2, 2015, and Genocidal Organ on February 3, 2017.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.