The Nine Continents of the cultivation world are in turmoil, and sword energy soars into the skies. A thousand years ago, Xuanxiao Sword Lord failed to overcome his tribulation and ascend, leaving his obsession behind in a sword spirit. As the myriad arts decline, the spirit takes human form as Xie Wuhuan, a deranged sword cultivator who massacres sects and wipes out entire clans, all to find a sacrificial offering bearing a crescent-moon birthmark and restart the Heaven-Connecting Array. But the person destined for this role is Qing Ci, a boy with twin spiritual roots hidden from the Heavenly Dao, well-versed in the occult and born to suppress spirits. Xie Wuhuan means to refine Qing Ci, yet their days and nights together awaken growing demons in his heart. Qing Ci breaks the deadlock with love, stakes his life, and turns the tables on death time and again. From imprisonment in a frigid pool to facing heavenly tribulations together, they love and hate each other in equal measure, and their trial of love becomes a blade. In the end, Xie Wuhuan abandons his sword bones to shield Qing Ci from the thunder tribulation, while Qing Ci scatters his spiritual roots to change their fate. Love is the original sin, and loving means destruction. In the end, only one reaches the summit, while their earthly bond begins anew.
