Perugius became famous after rebuilding the ancient sky castle Chaos Breaker and challenging Demon God Laplace with his companions. In honor of his deeds, a new era was named after him after the war called the Armored Dragon Era.
His companion North God Karuman I defeated and married Laplace's most feared demon god Atoferatofe. Karuman I made Perugius and Atoferatofe promise not to kill each other. After the Laplace campaign, he spent some time as a guest of Asura Kingdom as an equal of King Asura. During this period, he came to describe the king as his friend, but he grew tired of court life and later moved a life of seclusion. He resides in his sky castle and travels the world preparing for Demon God Laplace's revival.