"Those looking for an engaging story to keep them reading for hours on end will want to pick up The Devil on G-String."

Hardcore Gamer

"Ultimately, regardless of where you stand, this game is a definite buy even if you are new to the Visual Novel genre."

Brash Games

"G-Senjou no Maou is a thriller of a VN and great example of how varied this genre can really be, and it really deserves its place of regard as one of the best VNs."

RockmanDash

You play the role of Azai Kyousuke, the son of a legendary gangster infamous in the underworld. You spend your time listening to Bach, playing God at school and covertly working for your stepfather, a ruthless financial heavyweight.

This idyllic existence is broken when two individuals appear in the city— a beautiful girl named Usami Haru with hair you could get lost in for days, and a powerful international gangster known only as "Maou". Almost without delay, the two begin a deadly cat-and-mouse game, bringing you and your friends into the crossfire. Plotting, political intrigue and layer upon layer of interlocking traps are the weapons in this epic battle of wits.

(From VNDB)