The Adventure of the Pistol Daimyo: Bullet Counting Song
The coup begins yet right from the start there is an unexpected wrench thrown into the plans. The roar of muskets now rips across the new world, and the Drifters find their places leading armies.
Aired 16/12/2016EP 11 - The Adventure of the Pistol Daimyo: Bullet Counting Song

2016
DRIFTERS
The story centers around Shimazu Toyohisa, the real-life samurai who fought in the pivotal Battle of Sekigahara. In his dying moments, Shimazu is transported to a world of magic with other famous warriors throughout history. These warriors are forced to fight each other in an endless battle.
(Source: Anime News Network)