The 47 Ronin is a true story that happened in 14 Dec 1702.
The 47 Ronin avenge their master ASANO in an unprecedented attack, resulting to their destined Death.

Japan's certainly have a very complex history and culture.
In order to understand each phase of their history you have to go which period it happened. This particular story happened on 18th Century ( Dec 14 1702) Japan then was absolutely ruled politically by the shugons, and under him was a powerful shugonate court. where KIRA belongs to, he hold a very influential position in the Shugon's court.
Here comes ASANO a Daimyo in AKO ( AKO is located in HYOGO PREFECTURE) who was a man of honor.

The 47 Ronin story was a story of how a SAMURAI should be. Their service is beyond the lifetime of their master, unmatched LOYALTY, HONOR and Bravery!