Infernal Affairs

Legend has it that in a distant and unknown ancient period, the righteous spirit waned, and humanity, filled with arrogance, abandoned righteousness. The Earth God, seeking to warn humanity, decided to unleash a great disaster, causing the heavens to collapse and the earth to crack. The demons, sealed in the darkness underground, seized the opportunity to wreak havoc on the world... In this period of chaos and darkness, only the Lord of the Divine Sword Sect, the Unfathomable Daoist, could confront the demons in a battle to the death. This was because the Unfathomable Dao's Holy Sword could exterminate demons and slay monsters. The Holy Sword was forged by the founder of the Divine Sword Sect from heavenly black iron, utilizing his entire life’s devotion. Since those who wielded the sword would eventually meet their demise, the sword was separated from its technique, 'The Flying Immortal Beyond the Heavens,' and buried apart. Three childhood friends: Xiao Cuo, Xiao Ni, and Xiao Yun, were taken in by the realms of the Dao, Demons, and Immortals, respectively, and trained to become Unfathomable, Mo Ni, and Holy Maiden. Their fates were altered in a single night, as was the fate of all living beings in the world, hinging on the thoughts of righteousness and evil. To seize the sword and its technique, a death struggle erupted between the Demon Realm and the Dao Realm...