On a snowy night, Gu Junlin was taken away by the Phoenix clan and became a sacrificial offering to save the Phoenix Lord. Unexpectedly, the cold-faced Phoenix Lord Feng Qingxian, who had been trapped for a thousand years, could not bear to harm him, and instead took him as a disciple, carefully protecting him as he grew up. Eighteen years later, the young man stepped into the mortal world with a heaven-defying sacred body, exploring ruins, fighting proud geniuses, and breaking plots, all to find a way to save his master. But when the mystery of his life experience and the crisis of the three realms emerge one after another, can the sacrificial offering who was once at the mercy of others use a single sword to change his destiny and guard his family ties, promises, and the common people?