about an unidentified item in the I Love (X-file ver.) photobook

I recently purchased the I Love album (X-file ver) and noticed that each member is associated with a specific object in the photobook: Miyeon has a candle, Minnie has a page from a book (the one on the left), Soyeon has a lamp, and Yuqi has a high-heeled shoe, while a mask represents the group as a whole. However, there is one more circled object in the photo—another page from a book (or perhaps something else)—which most likely belongs to Shuhua. I’ve looked through every page, but I haven’t been able to find this item anywhere in the photobook. If you own this album, could you please check and see where the object circled in the photo comes from?