At night in modern cities, ambulances are not only a symbol of life and death, but also carry countless obsessions that wander between yin and yang. It is said that ambulances that go out at midnight will pass through the "Yin Yang Road", and some special ambulance personnel can see things that ordinary people cannot. The male protagonist Lu Chenzhou is involved in this life-and-death rescue that spans Yin and Yang due to his family's secret skills. At the same time, he secretly confronts the mysterious organization "The Soul Crossing Society" to protect the balance between the world and the underworld.
