n 200X, two worlds collided.... "World Half and Half Phenomenon!" Two worlds got mixed due to a mysterious phenomenon called the "World Mixing Phenomenon". In the new world, there exists the devil king. Actually, the world is a battlefield of two groups, Bloody Vampire, which is led by the devil...
The main character is the boss of an evil society. His group once destroyed the Justice Blade by attacking heroines one by one. His ambition is to conquer the world... However, the Justice Blade is now re-formed. When these two groups are about to have a battle, a devil group appears... Since...