In the country of Feerug, there are special types of humans called Casters, which are humans that can control concepts, which they can use it to fight. With this knowledge, President Luiz created a caster team called the Feerug Defenders! Led by Marcio, a magma caster, and Yuna a fire caster second-in-command, this group of caster is tasked with protecting Feerug from any threat.