During a festival in the kingdom of Emoria, a gang invades the kingdom. Master of keys Ian rushes to "Forest of Happiness" with his friends to repel the gang. Although Ian defeated them, their leader  kidnaped the kingdom's princess, Ana.

How did they manage to invade the kingdom?

t turns out that the gang and their leader, the Sun Prince, were brought into the kingdom by the wizard Belf, offering great power in exchange for the Forest of Happiness.
Will the guardian spirits of the forest manage to fight against Belf and his evil intentions this time?