Because of its unique geographical environment and original purpose of construction, it was difficult for native lifeforms to emerge in the Monster Realm.
Most living beings came from high-level ghosts of the human world. After death, ghosts with lingering obsessions involving animals had parts of their bodies mutate under the influence of those animal obsessions. Their personalities were also animalized to a certain extent. Ghosts that underwent such changes were alternatively known as "monsters."
Throughout the entire Zero Realm, individual monsters were second only to the freakish beings of the Ghost Realm in strength, yet their numbers were dozens of times greater than those of the Ghost Realm.
Because monsters themselves were associated with animals, the architectural style within the Monster Realm was quite close to nature. Most monsters with a low degree of animalization lived in artificial stone buildings or wooden and bamboo houses within the forests, while the small number with a higher degree of animalization dwelled in the most pristine wilderness.
The scenery and environment of the Monster Realm were also the most comfortable. Many nightmare ghosts who came from the human world liked this sort of environment.
—Flower Fruit Mountain—
This was the imperial capital of the Monster Realm compared to its other Great Realms. The central region occupied by Flower Fruit Mountain was a treasured land where the spiritual energy of heaven and earth was most concentrated in the entire Monster Realm. Including the main peak, seven peaks formed Flower Fruit Mountain's primary terrain.
Each of the six peaks surrounding the main peak was ruled by a monster king, including Lu Sheng's grandfather, who had some connection to Zhang Chen. The six monster kings were only inferior to Apostles in strength and served as the Monster Realm's main pillars of combat power. Together, they served