[TWICE] Formula of Love: O+T=<3

4 types

- STUDY ABOUT LOVE ver.

- BREAK IT ver.

- EXPLOSION ver.

- FULL OF LOVE ver.

*Album Components*

- 4 types of photo books

- Photocard (4 random out of 60)

- 4 CD-Rs

- Scientist card (2 random out of 18)

- Index photo paper (1 random out of 9)

- Scratch card (1 random out of 10)

- DIY stickers