Tsumi no Keishō (Original Sin)

[4] Gackt voiced The Fiend with Twenty Faces, main antagonist in the anime Trickster, as well provided the anime's first opening theme song from episodes 1 to 12, "Kimi Dake no Boku de Iru Kara",[5][6] while "Tsumi no Keishō (Original Sin)" was the second ending theme song from episodes 13 to 24.

[7] Gackt noted that he done a gothic theme already during his band era (Malice Mizer) and that likes edgy music with a message.

From the anime production team also received an order to make a song with feeling of happy future, but as he does not consider himself a commercial writer decided to do something unexpected.

[8][9] The same thing regularly happened with previous requests, for example "Redemption" and "Longing" for Dirge of Cerberus: Final Fantasy VII instead of ballads have also been fierce songs.

[11][12] The single's music video is a "problematic work" because it shows a brutal portrayal of violence, bloody scenes and fate of a girl and boy,[4][11] and thus has R designation and age restriction on YouTube.

[8] The video premiered on March 13 during the screening of Last Visualive Saigo no Tsuki –Last Moon– at Marunouchi Piccadilly theatre in Yūrakuchō, Tokyo.