Former IZ*ONE member and talented solo artist Lee Chae Yeon makes a comeback with her 4th mini album! [Package details] 130 x 190mm [Included bonuses] a concept archive book (120 x 180mm / 15 sheets), a photo card (55 x 85mm / randomly selected from three kinds), a lenticular photo card (55 x 85mm), four stickers, and a folded poster (240 x 360mm)