K-pop fans, get ready! This is the official 1st EP album from the group KATSEYE, titled 'SIS SOFT IS STRONG'. This listing is for the 'STRONG' version (there's also a 'SOFT' version). It's a full album bundle packed with goodies. The main album is large format (about 180mm x 250mm) and includes a photobook with 116 pages of concept photos, a CD-R with the music, and a whole collection of random and fixed inclusions. You'll get: random photocards (2 out of 6 possible), a folded poster, lyric cards, a sticker, postcards, a polaroid photo, a paper keyring, a lenticular card, and more – all specific to this STRONG version. Purchasing this official album contributes to the group's chart rankings on HANTEO and Circle Chart in Korea. It's a must-have for collectors and fans who want to support KATSEYE and own a piece of their debut. The album is shipped in secure packaging. Please note that contents like photocards are random, so you won't know exactly which ones you'll get until you open it – that's part of the fun!