The religions in this book vary. Voltism is obviously the religion that the book is based upon. Volstism has been forgotten now but perhaps one hero can revive it... Their main element is electricity. Since Voltism is virtually completely forgotten, not much is known.
The religion of Hecroanity is a peace natured religion as well. In the ancient times, they were allies with Voltism. their main elements are water and ice. Because water can create electrcity and ater are similair (water conducts electricity and makes electricity) it makes sense they would be allies. The main gods of Hecroanity are Hecris and others are still pending. In the fight against Darklorerea, Hecroanity is the main defending force against her, along with various small villages and people who don't follow a religion.