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."

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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'."