A new anime from Aniplex called Build Dive -#00000 (Code Black)-. According to the official website, the series is based on a card game that will also be released.
Check out the first trailer for Build Dive:
Therefore, the series is written by Homura Kawamoto and Hikaru Muno, making it an original work.
Synopsis:
The project takes place in "New Kyoto," where a new ruling lord is decided through his skills in a card game. The anime will center on a boy and a "guard" he can materialize.
Finally, the anime is directed by Yuuki Kodama (Blood Lad) at LIDEN FILMS, while Yoriko Tomita develops the series scripts. Shinpei Tomooka (Inukami!, Sekirei, Trinity Seven) is the character designer.