"My son, Wilbert. I hereby banish you from this Imperial Capital――!" Wilbert, the Fifth Prince, had been a shut-in who did nothing but research magic. One day, he is suddenly banished by the Emperor, but... far from despairing, he is overjoyed, thinking, "Now I can focus on my research without anyone bothering me!" Having deepened his research freely in the remote frontier, he creates one incredible magic after another! He summons the strongest demons to be his subordinates, succeeds in the supposedly impossible "Fusion of All Attribute Magic," and inadvertently becomes an extraordinary wizard―――!? The epic tale of the Fifth Prince who became the strongest without even realizing it, begins!!