[1] "Lover Boy" was chosen as the follow-up single and will be used to promote the EP starting on October 18.

[2] The image has a pop art theme and also shows the person on the photo making the word 'WOW' with their hands and mouth.

[3] One day later, on September 6, Cube revealed teaser photos of the group together, as well solo shots of every member.

The song is described to be of "new jack swing" style, which was popular during the '90s, and incorporates the solid vocal and rap skills of the members.

The fourth track, "U & I", was written by Hwang Sung-jin and composed by Lee Joo-hyung and Lim Sang-hyuk.

It is described to be filled with BtoB's distinct vocal color accompanied by the sound of an acoustic guitar.