The story begins in the Imperial court of Ancient China where Jiang Princess Yanli is married off to the Lan Prefecture under the jurisdiction of the crown prince Lan Xichen. In her entourage of female servants is Wei Wuxian a male accompanied by an instruction from the Jiang empress to be castrated for service to the Jiang Princess. However Castration is a Capital punishment in Gusu and cannot be meted out carelessly. Lan Xichen reassigns Wei Wuxian, to the cold palace where the former crown prince is imprisoned. The former crown prince's offense was the refusal to take a wife and provide heir for Lan Kingdom. Lan Xichen's chief consort Qin Su advised that perhaps the criminal Wei Wuxian would kill the cold prince (as the former crown prince is known) to clear the way for Lan Xichen to ascend the throne. Lan Xichen, who loved his brother, did not wish him to die. But he valued his position as crown prince more. so he listened to Qin Su.

Wei Ying and Wei Wuxian were twins, separated as children after a horrific event orchestrated by the Wei family-experiments, secrets, something worth covering up. Wei Ying grew up refined, brilliant, soft-spoken, and independent. Wei Wuxian grew up wild, orphaned, angry, violent, and alone. Neither knew of the other. But their blood holds the key to a supernatural family secret that could reshape identity itself. Both are killed. Wei Ying awakens in Wei Wuxian's body-with both sets of memories-and stays silent. Lan Wangji mourns the wife he lost. But now, the rough-edged man who flirts with him seems to know too much. Kiss too right. Feel like someone who shouldn't exist.

The illegitimate heir to a business dynasty marries a stranger on the instruction of his uncle and Patriarch only to find out that they were both pawns in a game started by their parents, aiming to play not just with fate but humanity itself. Bioengineered to be a new species, Wei Wuxian finds himself in love with the modified clone of one of his creator's ancestors, and together they decide to stop letting man interfere with nature and turn man into machine.

Gulf has always navigated life as an introverted soul, retreating into the shadows of his shyness. Struggling to articulate his thoughts and feelings, he feels isolated in a world of vibrant connections. That is, until he meets Mew Suppasit, the charming son of his father's friend, who effortlessly draws Gulf out of his shell. Their burgeoning friendship blossoms into a bond that provides Gulf with solace and strength he never knew he needed. However, the euphoria of their companionship soon spirals into chaos as a grave misunderstanding shatters the fragile trust they built. Determined to cut ties, Mew must confront the fallout of his decisions, while Gulf wrestles with the decision to forgive his friend or to move on for good. As Gulf grapples with the option of redemption, he embarks on a journey of self-discovery, exploring the true nature of friendship, betrayal, and the power of second chance. In a world where vulnerability is strength, will Gulf find it in his heart to give Mew another chance, or will their moment slip away like sand through fingers?