Donten ni Warau
A Japanese manga by Karakara-Kemuri. It was published in the magazine Mag Garden in Monthly Comic Avarus from March 2011 to July 2014. There was a total of 6 volumes. From October to December of 2014, and animated television series was adapted and ran for 12 episodes. A manga sequel called Donten ni Warau Gaiden was released in 2014 as well as the Rengoku ni Warau which is set 300 years before the original series.
The story is set during the Meiji Restoration in 1878. Many criminals have surfaced and a samurai rebellion is taking place. Those who are evil enough get sent to Lake Biwa which has a giant prison set in the middle. The Kumo brothers transport the prisoners to the main gate of the prison. They also take responsibility in catching prisoners that may have escaped on the way to Lake Biwa prison. What they don’t know is that a secret rebellion is taking place and soon they do not know who to trust.