NU'EST is inching closer to their comeback.

The boys updated their website - now, when the light is shone toward the far right, fans can see a lock. Clicking on the lock prompts fans to put in their birthday, and any four digits that can be a date will work (for example: 0315 will work, but not 2012, because 20 is not a month). Entring four digits will lead fans to a page that reads, "What is Romance?" with 'a', 'm', and 'n' italicized, and the phrases 'lower', 'run away, 'transience', 'noise', and 'close' on blocks on the bottom.

Most excitingly, there is a counter on the very bottom that is counting down to something - what do you think it could be?

NU'EST is coming back on April 19th. You can check out the website here.