When Su Wan, a cultural relic restorer, touched an ancient jade from the Warring States Period that was engraved with mysterious lines, he was suddenly involved in the turbulence of time and space. When he opened his eyes, he became the abandoned daughter of the Hou family of the Qiyuan Dynasty. At that time, the Hou family was deeply involved in the suspicion of conspiracy. She was poisoned and her life was hanging by a thread. In a desperate situation, she accidentally discovered that the ancient jade was not lost, and could open a two-way time and space channel at a specific moment - and the other end of the channel was actually connected to Xiao Che, a young general from the Qiyuan Dynasty.
Xiao Che is upright and brave, but he is framed as a treason because of his involvement in the struggle for imperial power. When he is about to die, he triggers the resonance of the ancient jade and briefly falls into the modern era where Su Wan lives. One brings modern knowledge to break the situation and survive, while the other is nostalgic for the ancient times and wants to clear his grievances. The two support each other across thousands of years of time and space: Su Wan teaches him to identify modern technology and the treacherous nature of the human heart, while Xiao Che provides her with ancient strategies and survival methods. When the secret of two-way travel is revealed, a larger conspiracy emerges. Not only do they have to fight against enemies in their respective time and space, but they also have to face the fateful fetters that span thousands of years. Finally, at the junction of Qingshi and Neon, they explore a two-way road to redemption.
