The HARMONY SECRET PHOTOBOOK is a beautifully crafted photobook, measuring 21.00 x 29.70 cm. It showcases stunning visuals and offers a glimpse into the world of harmony and elegance. Included with the photobook are several exclusive items: one signed member postcard, chosen randomly from a selection of four, an official A4-size poster, and a special random postcard. The cover is elegantly designed in a subtle white texture, featuring the title 'HARMONY SECRET' embossed in gold, giving it a luxurious feel. This collection is perfect for enthusiasts and collectors alike, encapsulating moments of beauty and artistry.