The Human Realm was the strongest of all seven realms, and in which many powerful figures of the Human Race gathered. Meanwhile, the Demon Realm was where the Demon Race resided. The Fiend Realm was the territory of the Fiend Race, and the Underworld Realm was the territory of the Underworld Race. In the Realm of Nothingness lived illusory creatures who were unique in their existence. Meanwhile, the Nine Heavens Realm was named after the Ninth Heaven Grand Emperor Rank. No one knew why it was na