Ryu and Ken travel the world to become better fighters and learn new techniques. During their journey, they find themselves caught up in a conspiracy...
After the murder of Luna, the robot society that rules the planet starts to rust and decay. Death and despair spread through the land like wildfire....
When an island half-disappears from the face of the earth, a mysterious organization sends out invitations for a tournament to every skilled fighter...
Makoto Misumi is just an ordinary high school student living a regular life, but all of a sudden gets summoned to the other world to become a "hero."...
