Yun Chuyao, the future lantern holder of Tianxuan Pavilion, is stuck in the past while guarding the marriage contract he signed when he was a boy. But when the figure that was supposed to disappear reappeared as Shen Yunche, the most dangerous killer in the world, "Ye Wuhen", the past and the present collided fiercely.
As fate would have it, the two are in the same boat again. Yun Chuyao was determined to uncover the truth and protect the engagement; but Shen Yunche tried to bury the past for fear of bringing disaster to her. Murong Xuan's conspiracy is like a dark cloud covering the sun, intertwining the grievances of the Yun and Chen families with the fate of the world. Facing his former lover, Yun Chu moved forward fearlessly; Shen Yunche, covered in armor of hatred, was also struggling between love and hatred. This reunion is not a sweet renewal, but a cruel test of love by fate. If their deep love eventually becomes a burden, can they still hope for the next life?