Chushingura is one of the most popular Samurai story since Edo period. The story is based on "the murder case of Ako in Genroku era." In April 21, 1701, Asano Takuminokami Naganori, the lord of Ako land, attempted murder Kira Kozukenosuke Yoshihisa in Edo castle where drawing sword was seriously restricted (charge of death for the violation). Asano was ordered Seppuku right next day and his land was abandoned. At the night of December 14, 1702, Oishi Kuranosuke Yoshio and other 46 ronin, Samurai of Asano, broke into Kira's house and killed Kira for finishing the murder that their lord could not accomplish. They brought the head of Kira to the grave of Asano in Sengakuji, and most of them did Seppuku after the revenge.

Because they were allowed to do honorable Seppuku, their act of the revenge as considered as the justice according to Bushido, and the case became the popular story of royal Samurai.

Main personals
Oishi Kuranosuke Yoshio (大石内蔵助良雄): the leader of Ako Roshi.
Asano Takuminokami Naganori (浅野内匠頭長矩): the lord of Ako and 47 Ronin.
Kira Kozukenosuke Yoshihisa (吉良上野介義央): The guy forced Asano to do Seppuku.
Oishi Chikara: the son of Kuranosuke.

Matsu no Roka
Matsu no Roka is a walkway of Edo Castle. It is located current the imperial palace eastern Garden.

The house of Kira
It is located in Ryogoku. The size of the ruins are one 86th of original size, but there is a well that was used for washing Kira's head.

Sengakuji
There are graves of Asano Takuminokami and all 47 ronin. There is also memorial museum of Chushingura.

Ruins of Hosokawa House
Oishi Kuranosuke and other 16 Ronin did Seppuku at this place.

Ruins of Matsudaira House
Oishi Chikara and other 9 Ronin did Seppuku at this place. Currently it is Italian embassy.