Juno is a small desert world with large sand deserts that move like the oceans do on other worlds. It is an infamous training ground for keliouxians. Many warriors at the end the peak of their training are sent to Juno to slay a Kassck. And many do not come back alive.

Kassacks are large dragons that live on the surface of Juno and they have a natural power level of around 800 to 2,000. They are the only creature with the ability to use ki attacks by nature. They have a special ability called Ki Eater, which enables them to absorb an energy attack and fire it back at double the strength. It takes skill and great power to defeat a Kassack and bring back its head to Kelioux and be considered a master.

Once per week while on Juno you may fight a Kassack and gain +25 exp.