Lord of the Nine Realms

One hundred thousand years ago, the human race suddenly suffered a great change. The world hegemon suddenly became the gatekeeper of the nine worlds. He guarded the two space portals and fought to the death against invaders from other worlds. I don't know how many heroes died in the battle... The human race is oppressed, the monster race is looting and killing, visitors from the underworld are coming, and the three races of blood, corpses and ghosts are cannibalizing the human race... Amid internal and external troubles, where should the human race go? The five great evil ancestors outside the heavens are watching eagerly, and the wolves in the mainland want to divide and eat them. How can young Chen Yang save the building from falling? (Mutation in the world + severance of the practice system + invasion of evil spirits + alien plans)