DOMINO ～ butterfly effect - Japanese ver. -

"Knock-on Effect is the first Japanese mini album by Billlie. It was released on February 7, 2024 with "Domino ～ Butterfly Effect -Japanese ver.-" serving as the album's title track. "Dang! (Hocus Pocus) -Japanese ver.-" was pre-released on January 17, 2024. The physical release is available in seven versions: Limited Edition, Normal Edition, and five member-specific versions.