[3] Set in Japan, the series follows a samurai named Raizo Kurima who crosses paths with hitmen known as Revengers after being betrayed by his superiors.

Kurima's coworkers include a physician with destructive impulses, a beautiful and androgynous young man who is both cruel and innocent, a gambler who loves money and alcohol, and an intelligent lacquer craftsman.

[1] The anime is directed by Masaya Fujimori and written by Gen Urobuchi of Nitroplus and Renji Ōki, with Jun Futamata composing the music.

Because of looser regulations, New Cinema and macaroni western programs that aired on television back then were full of surprises, and audiences did not know what would happen next.

[1] RetBear said that "Downtimer" emphasizes the determination of moving forward despite not being able to properly see the future which fits with the series' ideals of revenge.

Sakamoto asked Yūho Iwasato, the lyricist she respects the most, to write the lyrics with the image of wanting to create a song that would envelop and purify the hearts of the characters.

While the setting was found interesting for mixing Oriental and Occidental content in a historical Japan, the lack of female characters was criticized especially due to the suicide of Kurima's fiancée at the end of first episode.