Heibai Wushang
English name: The Unparalleled Black & White
Genres: Action, Comedy, Supernatural
Type: ONA, Episodes: 12
Aired: Jul 9, 2015 to Feb 25, 2016
Studio: Wawayu Animation
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
A story about two young demons who are always slacking off at work, a place that happens to be an organization that vows to keep the balance between the worlds of the living and dead by killing humans!

(Source: Cave Scanlations)