Queen's Blade  Gyokuza wo Tsugu Mono

Queen's Blade is a series of visual combat books published by Hobby Japan based on the licensed works from Flying Buffalo's Lost Worlds. First published in 2005, it features sexually suggestive depictions of an exclusively female cast of characters. The overall plot of the game revolves around a tournament called the Queen's Blade, which is held every four years to determine a Queen. Only young women who are considered beautiful in their hometown are allowed to enter.