Snow blankets Kunlun Ruins, but it cannot conceal the cracks deep in the Sword Mound. Qin Feng, a gifted sword cultivator of the Azure Cloud Sword Sect, encounters the mysterious demonic cultivator Qingya after his master is killed. The black jade pendant carved with hidden patterns becomes the beginning of a crisis that upends his faith.
He is a celebrated scion of the righteous path, with a crystal-clear sword heart; she is an outcast of the Demon Sect, wreathed in ominous demonic energy. The two should be mortal enemies, yet while investigating secrets from three hundred years ago, they uncover the filth and sincerity concealed beneath the labels of righteous and demonic: the Azure Cloud Sword Sect's hypocrisy, the Demon Sect Holy Maiden's sacrifice, and the truth deliberately buried, that the righteous and demonic once stood side by side against a common foe.
When the Heartbond Curse entwines the flames of his sword heart with her bone-eroding demonic energy, and the edge of the Startling Thunder Sword takes on dark demonic markings, they cleave through more than the Heavenly Demon's claws and minions. They also break the prejudice that has ossified the cultivation world for a thousand years. From Kunlun's icy valleys to the Heartburning Cliff in the Southern Borderlands, from Dragon-Subduing City in the northern desert to the Alliance of Ten Thousand Sects in the Central Plains, these lovers of the righteous and demonic paths, burdened by a blood feud, take the sword as their brush and blood as their ink, writing the most rebellious answer between all living beings and fate:
The righteous path is not found in a sect's cultivation arts, but in the heart that protects others. The demonic path is not wanton slaughter, but the freedom to follow one's heart. When the sword is stained black and warmth stirs within the demon, they will prove at last:
Love and the Dao have no boundaries.
