The album contains four covers of classic K-pop songs, including Papaya's "Listen to My Word (A-ing)" featuring reggae duo Skull and Haha.

This is the final release featuring member JinE, as she shortly ceased activities during the promotion to recover and receive treatment.

[1][2] On July 15, 2016, Oh My Girl's agency WM Entertainment announced that the group would be releasing a special summer album in August.

[5] The title track, "Listen to My Word (A-ing)", is a cover of the hit song by girl group Papaya, originally released in 2000.

[10] "Midsummer Night's Christmas", originally released in 1990 by Lee Jung-hyun [ko], has a piano melody and bossa nova drum rhythms.