Osiris no Tenbin
Genres: Drama, Supernatural, Suspense
Type: ONA, Episodes: 10
Aired: Aug 1, 2015 to Sep 23, 2015
Source: Original
Rating: R - 17+ (violence & profanity)
Synopsis:
The protagonist is a mysterious assassin. In order to decide whether or not to carry out requests for assassination, he meets his targets to make a final judgment.

(Source: Official website)