[DAY6] The Book Of Us : Entropy

- Cover (Random ver / 157 x 212mm)

- Photobook (88p)

- CD (Random ver)

- Photocard (Random 2 out of 40)

- Postcard (Random 1 out of 5)

- Bookmark (Random 1 out of 5)

- Film Photocard (Random 1 out of 5 / 1st Press Only)

- Poster (Random 1 out of 7 / 1st Press Only)