Kikokugai: The Cyber Slayer
Kikokugai: The Cyber Slayer (鬼哭街 -The Cyber Slayer-) is a Japanese cyberpunk visual novel by Nitroplus. It's Nitroplus' third game, and the script is written by Gen Urobuchi.
The game was remade in 2011 with enhanced graphics, a new theme song, and character voices added.
The 2011 version is also rated for ages 15 and up instead of the original game's 18+ rating.