The song was produced by Duble Sidekick, who had worked with the group for "Something" and "Darling".

[1] On October 8, 2014, the group's agency revealed that the album would be released in the form of a smart card, touted as a world first.

The card would include the title track along with four previously-released songs and would require a near field communication (NFC) capable smartphone to access the content through Kihno.

[2] The music video for the lead track was released on October 15, 2014.

[3] Girl's Day announced that they would not be promoting "I Miss You" on the weekly music shows.