"My son, Wilbert. I expel you from this Imperial capital—!" The Fifth Prince Wilbert dedicated himself solely to the study of magic in seclusion. However, one day, the Emperor unexpectedly condemns him to exile... but instead of feeling hopeless, Wilbert is filled with joy! "Now I can focus entirely on my research without interruptions!" he thinks. Sent away to a distant frontier, he finally gains the freedom to enhance his studies, creating one astonishing spell after another! From calling forth the mightiest demon to act as his familiar, to accomplishing the seemingly impossible "Fusion of All Attribute Magics," he unwittingly evolves into an unparalleled mage—?! The unmatched story of the Fifth Prince who inadvertently becomes the strongest commences now!!