The song was written and produced by C-no, Ung Kim and Iggy who was also part of the creation of all the group's singles until "Summer Rain". It was described by Billboard's Tamar Herman, as a "sleek dance track all about the heat of a romance that doesn't diminish even during the cool nighttime".
A music video for the song was uploaded on GFriend's and 1theK's YouTube channels on July 1, 2019, at the same moment as the EP. Then, on July 11, a choreography version of the music video was released, As of 2021 the video gained 31 million views.