This series takes place in a world where super powered people fight in a sporting competition called the Global Vigilants League. There is a sub group of fighters who get their powers by bonding with creatures called 'Biunites' but most people do this by using an expensive Bond Band. These bands are essentially a cheat to make a connection with one of these creatures and it is frowned upon to bond with one naturally despite the fact that this makes a stronger, more genuine connection. Akeru Innoue and Ogimma Knight have both made these authentic bonds and are now trying to show others that this is the right way to go.