Criminal Girls Invite Only is an action simulation RPG developed by Nippon Ichi Soft. 7 girls have been gathered in the Hell Spire. They have been tainted by their criminal DNA and they are referred asDelinquents. You are the instructor to a special rehabilitation program, also known asReformation Program, and your mission is to guide these 7 girls to the very top of the spire. If they manage to do so, their sins will be atoned, and they can be revived back into the mortal realm. Can they atone for their sins? Will your program be successful? Will everything really work as it is supposed to? Answer these questions yourself in this quirky and entertaining game!