is the 12th major single (16th counting the indies) by the Japanese idol group S/mileage, released in Japan on November 28, 2012.

The song was premiered live at the concert held on September 29 at Yokohama Blitz.

All the limited editions are shipped sealed and include a serial-numbered entry card for the lottery to win a ticket to one of the single's launch events.

The limited editions A, B, and C include a bonus DVD with a different version of the music video for the title track.

All tracks are written by TsunkuSealed into all the limited editions The corresponding DVD single (so called Single V) was released a week later, on December 5.