Tiffany has always been truthful to her fellow Girls Generation members, same goes to her members too. She tells her secrets to them as she trust them for keeping it. One fine day, something happened to Tiffany causing her to keep a big secret from her members. Ever since that day of incident, Tiffany had to always lie to her members in order to keep the secret safe. Want to know what happened to Tiffany? What was that 'big' secret? Read on to find out!