 It is the first of two back-to-back singles, both servicing the soundtracks of two installments of the "Ōoku" franchise.It was released digitally in truetone format on October 12, 2012.The first pressing of the physical release came in digipak format and included the password to a secret Ustream broadcast of a mini concert held on December 19, 2012 to celebrate the release of the single.