So, as we all know by now, VIXX has announced the name of their comeback, Chained Up, and have released teaser images. A while ago, ROVIX tweeted, shedding some light on the concept. 

Here is @RealVIXX's original tweet: https://twitter.com/RealVIXX/status/660615431867101184

And here is the translation (credit to @leochaa/yuu-jin on Twitter):