Rogue is the screenname of the individual who is currently translating Monster Girl Quest from Japanese to English. Not known is much about the man other than him being a businessman in real life, and going on frequent business trips as a result.
He works tirelessly in terms of creating a reliable translation, completing 66% of the Chapter 2 translation in a matter of 2 months.
Rogue's blog and the translation can be found at http://roguetranslations.wordpress.com/