While discussing their new title song, "Playing With Fire', during an interview with Ten Asia, Jennie said, "'The song portrays love as playing with fire, but I never had such an experience so I turned to movies and dramas to understand the feelings of love."

Jisoo further explained how Black Pink get their inspiration, saying, "All of us only had secondhand experiences. When we are in our dorms, we watch romance movies and dramas. When a romantic scene comes on, we hold on to each other and scream. Recently, we've been enjoying 'Incarnation of Jealousy'."