Emergency doctor Lin Yuan has a secret: he dreams of a ruined temple, a stick of incense, and a woman waiting for him every night.
Until late that night, a patient with cerebral hemorrhage came in from 120. When his hand touched her forehead, memories from five hundred years ago surged back - he was the coward who abandoned her on a rainy night, and she was the wife who called his name even before she died.
"I will come back when the incense burns out." This was his promise five hundred years ago.
"You're here." These were the first words she said when she opened her eyes five hundred years later.
He tried his best to save her, but could only watch the ECG monitoring become a straight line. At 0:00, she died in his arms, a tear falling from the corner of her eye.
But the story doesn't end there.
At three o'clock in the morning, he received a mysterious text message: "The painting is finished. There is someone waiting for you at the other end of the bridge." The accompanying picture was her unfinished painting - a bridge. In the center of the bridge stood him in a white coat, and on the other end of the bridge, someone was walking towards him.
The next day, a new nurse came to the emergency department, a twenty-three-year-old nurse named Su Qiao. There is a ring mark on her left ring finger that has been there since she was a child. She always has a dream: a ruined temple, a rainy night, a stick of incense burns out, and someone leaves and never returns.
"The first time I saw you, I wanted to cry," she said.
"What if I say, that person is me?" He asked.
Five hundred years ago, he vowed to transform into a bridge and endure all the wind and sun just for her to cross it. Five hundred years later, she finally came over.
But it was too dark on the bridge and she needed a light.
And that lamp is in his hand.
Cause and effect never ends, it just reunites in a different way.