There are various tales, fantasies, and legends around the seven planets and many of them contain some grain of truth.
Our universe, or as it was called in the old tales, the Sea of Souls, was a vast ocean of darkness until the goddess Arua created the seven planets. Each one of them was special and unique. However, all seven planets were created with Arua's love and they shined with the brilliance of seven stars, filling the vast ocean of darkness with wondrous light and life.
However, Hebarn, god of malice, grew envious of Arua for her creative power. He forcefully took the seventh planet and pompously named it after himself. Hebarn had become a constant threat to the peace of the seven planets as well as to the goddess Arua.
To protect the planets from Hebarn's looming menace, Arua created the Visitors, living beings to protect and inhabit the planets. They were scattered among the seven planets to bring peace and justice to the different worlds.