Rapper GiriBoy, Sistar's Soyou, and MBC's cable survival show No Mercy's Kihyun came together for a delicate and sweet collaboration.

Composed by hit-maker Duble Sidekick, the song itself emits a very lovable aura. Due to the strong fundamentals of all three contributing artists, the song is able to capture the sweetness of Soyou's voice, the precision in Giriboy's rapping, and the calmness of Kihyun's vocals all in one delicate track.

The song itself was inspired by real life lovers who wrote sentiments about their significant other using the keyword "pillow." Singer Kihyun, who is set to be a vocalist in the group Starship, contributed his vocals for the first time before his actual debut.