It is their 33rd single and is included in the group's seventh studio album 777: Triple Seven.

was written by Mitsuhiro Hidaka and Leonn, composed by Hirofumi Hibino, and arranged by Blue Birds.

"Birthday Song" was written by Kenn Kato, and composed by Jam9 and ArmySlick.

[4] The song was used in television advertisements for hypermarket Ito-Yokado's "Cool Magic" and "Koi Yukata" ads.

[6] It has charted for two weeks[1] and sold over 39,400 copies in Japan.a On the issue dated August 6, 2012, the song debuted at number eight on the Billboard Japan Hot 100.