EES new song “Ninja Slayer” will be the ending theme of Ninja Slayer #6.
Ninja Slayer (ニンジャスレイヤー Ninjasureiyā?) is a Japanese science fiction novel series, purportedly created by the American authors Bradley Bond and Philip “Ninj@” Morzez. After they gave permission for Japanese translations to be published via Twitter, Enterbrain published the first translated novel in September 2012, with illustrations by Warainaku. Eight novels have been released as of April 2014. It has received three manga adaptations. An ONA adaptation produced by Trigger and directed by Akira Amemiya started airing in April 2015. -from Ninja Slayer, Wikipedia