The Heroic Spirits I Summoned Are All Hidden Bosses from History.

Old Era·Psychic Era ·Three thousand years ago, there was a brilliant psychic civilization in this world. The monks absorbed the spiritual energy of heaven and earth and created a splendid cultivation system. There were many major sects and there were many strong men. It was a golden age where heroes emerged in large numbers. ·The strongest person is called the "Spiritual Emperor" - a total of nine have been born, each of whom has left an immortal legend in history. Cataclysm·Psychic Doomsday ·137 years ago, a disaster called the "Psychic Tide" suddenly struck. The spiritual energy of heaven and earth was polluted by some unknown force overnight and turned into deadly "turbidity". ·Monks who inhale turbid air will gradually lose their mind and eventually transform into unconscious monsters - turbid spirits. ·Civilization collapsed in three months. The nine spirit emperors joined forces to fight against the source of the disaster. In the end, they all fell and civilization regressed. The survivors hid in the few "Pure Spirit Array" shelters that were still functioning to survive. New Era·Wasteland Era ·The time point when the story begins: the 137th year after the catastrophe. ·Humanity has degenerated to an almost primitive tribal state. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.