An anime television series adaptation was announced at the Dengeki Bunko Fall Festival 2017 event on October 1, 2017. The series is directed by Masayuki Sakoi, written by Yōsuke Kuroda, produced by Egg Firm and animated by studio 3Hz, with character designs by Yoshio Kosakai. The opening theme song is “Ryūsei” (流星 Meteor) by Eir Aoi and the ending theme song is “To see the future” by Tomori Kusunoki.
The series aired in Japan between April 8 and June 30, 2018, and is airing on Tokyo MX, BS11, Tochigi TV, Gunma TV, MBS, and TV Aichi. The series will be released on 6 home video sets with 2 episodes each, for a total of 12 episodes. Aniplex of America has licensed the series and simulcast the series on Crunchyroll and Hulu. Anime Limited announced that they had acquired the series for release in the United Kingdom and Ireland. Madman Entertainment acquired the series for release in Australia and New Zealand, and simulcasted the series on AnimeLab.
To promote the anime, Tokyo Marui made a limited edition FN P90 submachine gun with a pink finish as part of a collaboration with Keiichi Sigsawa and Kōji Akimoto, the latter who worked on the air gun’s color. The pink P90 was raffled to the public through a raffle in a collaboration with Pizza Hut Japan, in which two of them were awarded to contestants.
source : wikipedia.org