When a small and peaceful Fire Nation clan is overrun and subjugated, the fallen leader’s eldest son escapes, taking an oath of vengeance, to bring peace and prosperity back to his people.

A woman with incredible fighting prowess is entrusted with the life of the runaway heir to a noble Earth Nation house when it is discovered that a power-hungry advisor is plotting to take the throne.

An old man lives alone deep in the forest, having stumbled upon a portal into the spirit world, he lives in isolation to guard and protect the gate, keeping its existence secret from those who would abuse its potential.

The guardian is a class of commitment and devotion, fealty to a cause. Some are born with the guardian’s instinct, to guard and protect; others come by it when they take an oath, finding strength in dedication to that which they bound to guard.