In ancient times, the Demon Lord Slayer and the Demon Emperor Jiu Yao returned to the ruins after a bloody battle. When they died together, they accidentally triggered the Chaos Forbidden Technique, and their two souls were entangled and fell into reincarnation. Thousands of years later, during the golden age of cultivation, the Lu family of Ziyunzhou gave birth to twins: the elder brother, Lu Zhaoming, was born with a body covered in magic patterns, and the younger brother, Lu Qingyao, had a soul-catching demon pupil in his right eye. The two were regarded as disaster stars by the Lu family since childhood, but they did not know that the origin of chaos that subverted the three realms was sealed in their blood.
At the age of seventeen, during a trial in a secret realm, the two brothers awakened their past life memories in the Nine Nether Cold Pond. The soul of the demon king controlled Lu Zhaoming's sword and pointed it at his brother's throat, but the demon emperor's residual consciousness allowed Lu Qingyao to see a deeper conspiracy - the decisive battle was actually set up by the fallen immortal Chi Lian, and the Lu family's thousand-year ancestral motto of "killing the twins" was actually a cruel secret method to nourish the origin of chaos.
As the God-killing Spear breaks the seal and the Eastern Emperor Bell mourns, the twins reveal a shocking scam while falling in love and killing each other: the so-called order of heaven is just the incarnation of the evil thoughts that were chopped off by the first generation of Chaos; and their love affair that has entangled them for ten lives is actually the only key to breaking the closed loop of reincarnation. When Lu Zhaoming used the demon bone as a contract, Lu Qingyao used the demon's heart and blood as a sacrifice, and the fire of chaos burned up and was reborn in the Mirror Sea. One hundred thousand star gates opened, and twins from all realms returned together with swords in hand. Finally, they cut the way of heaven with love and rebuilt the Innocent Taichu.
